Go Back   Team-BHP > BHP India > Super-Cars & Imports in India


Reply
 
Thread Tools Search this Thread
Old 11th May 2015, 15:00   #1171
Team-BHP Support
 
Gannu_1's Avatar
 
Join Date: Apr 2013
Location: Madras
Posts: 4,800
Thanked: 9,458 Times
Default Re: Supercar & Import Crashes in India

The X3's top speed is mentioned as 210 km/h at BMW's technical specs link.
Gannu_1 is offline   (2) Thanks Reply With Quote
Old 11th May 2015, 15:03   #1172
Senior - BHPian
 
svsantosh's Avatar
 
Join Date: Mar 2008
Location: Hosur
Posts: 3,308
Thanked: 1,378 Times
Default Re: Supercar & Import Crashes in India

Quote:
Originally Posted by smartcat View Post
Impossible to have an impact speed of 220 kmph - I know photos don't lie, but this one definitely is. That is the max speed of BMW X1. The driver would have definitely braked & slowed before hitting that truck. To me, looking at the car damage, the impact speed is likely to be 100 kmph+

Maybe, because of impact, something got messed up with the electronics, and the needle moved to the maximum position?
On that note, many cars (and the pulsar bike too) have a system of needle sweeping a full turn and back to zero before the 1st crank. So why didnt it go to max 280~ and 7-8K RPM. If someone can validate that SUV does 220 at 4.2ishK RPM then there could be some truth behind the picture. (Ps Validate doesnt mean take out your SUV and repeat this feat! -- some googling will also help)
svsantosh is offline   (1) Thanks Reply With Quote
Old 11th May 2015, 16:27   #1173
Senior - BHPian
 
Vik0728's Avatar
 
Join Date: Feb 2010
Location: Bangalore
Posts: 1,719
Thanked: 2,099 Times
Default Re: Supercar & Import Crashes in India

Here is an interesting article from the TRB (Transportation Research Board).

Abstract here is:

Quote:

Based on these findings, it is not recommended that post-collision speedometer readings be included in a reconstruction as evidence of that vehicle’s speed in most cases. However, some vehicles are equipped with instruments whose indicator needles demonstrate an increased resistance to movement combined with a lower susceptibility to needle motion during orientation, vibration and shock changes.

Last edited by Vik0728 : 11th May 2015 at 16:30.
Vik0728 is offline   (2) Thanks Reply With Quote
Old 11th May 2015, 17:04   #1174
Team-BHP Support
 
Akshay1234's Avatar
 
Join Date: Dec 2006
Location: Mumbai
Posts: 9,737
Thanked: 6,295 Times
Default Re: Supercar & Import Crashes in India

Quote:
Originally Posted by Gannu_1 View Post
The X3's top speed is mentioned as 210 km/h at BMW's technical specs link.
That would be true speed, so infact the X3 could hit 220 on the speedometer which would display speeds a bit faster than the actual speed.

Quote:
Originally Posted by veedub89 View Post
The rear cabin is intact to a great extent and therefore I highly doubt that the car was doing 220kmph.
Also, and more importantly, it is next to impossible to achieve speeds of 220kmph on regular public roads. Sure you might be able to do it on an super expressway or something but on a standard highway in India? No chance. You would need a lot of straight road to get there.
Glad to see no one else got hurt.
You would be surprised how quickly some of these cars cross the double ton. The crash too looks to me like it happened at a high speed.

Last edited by Akshay1234 : 11th May 2015 at 17:31.
Akshay1234 is offline   (3) Thanks Reply With Quote
Old 11th May 2015, 17:22   #1175
BHPian
 
Join Date: May 2010
Location: Chandigarh
Posts: 227
Thanked: 169 Times
Default Re: Supercar & Import Crashes in India

The rear cabin is intact to a great extent and therefore I highly doubt that the car was doing 220kmph.
Also, and more importantly, it is next to impossible to achieve speeds of 220kmph on regular public roads. Sure you might be able to do it on an super expressway or something but on a standard highway in India? No chance. You would need a lot of straight road to get there.
Glad to see no one else got hurt.
veedub89 is offline   (3) Thanks Reply With Quote
Old 11th May 2015, 19:03   #1176
Distinguished - BHPian
 
Sahil's Avatar
 
Join Date: May 2004
Location: Bombay
Posts: 5,175
Thanked: 1,996 Times
Default Re: Supercar & Import Crashes in India

Quote:
Originally Posted by veedub89 View Post
The rear cabin is intact to a great extent and therefore I highly doubt that the car was doing 220kmph.
Also, and more importantly, it is next to impossible to achieve speeds of 220kmph on regular public roads. Sure you might be able to do it on an super expressway or something but on a standard highway in India? No chance. You would need a lot of straight road to get there.
Glad to see no one else got hurt.
The crashed speedo won't lie. Infact, he probably was doing 240-250(hit the limiter) and after braking slightly the final speed at impact was 220.
It is definitely possible to hit speeds in excess of 200 on certain expressways in India provided you have a powerful car. Nonetheless it is not something I would encourage.

Heart goes out to the driver and his dear ones. RIP.

Last edited by Sahil : 11th May 2015 at 19:04.
Sahil is offline   Reply With Quote
Old 11th May 2015, 19:14   #1177
Senior - BHPian
 
akshay4587's Avatar
 
Join Date: Mar 2005
Location: Chandigarh/Mohali/Ambala Cantt
Posts: 3,755
Thanked: 1,544 Times
Default Re: Supercar & Import Crashes in India

Quote:
Originally Posted by akshay1234 View Post
That would be true speed, so infact the X3 could hit 220 on the speedometer which would display speeds a bit faster than the actual speed.



You would be surprised how quickly some of these cars cross the double ton. The crash too looks to me like it happened at a high speed.
I agree, and the fact that the RPM is also stuck at 4K+ indicates that the X3 was doing some obscene speeds. However if it was really at 200+, then the vehicle has taken it well, since the rear cabin is still intact. May the deceased soul rest in peace.
akshay4587 is offline   Reply With Quote
Old 11th May 2015, 19:40   #1178
Team-BHP Support
 
Rehaan's Avatar
 
Join Date: Feb 2004
Location: Bombay
Posts: 22,261
Thanked: 22,222 Times
Default Re: Supercar & Import Crashes in India

Interesting discussion about the speedo, with some good points!

Quote:
Originally Posted by Vik0728 View Post
"However, some vehicles are equipped with instruments whose indicator needles demonstrate an increased resistance to movement combined with a lower susceptibility to needle motion during orientation, vibration and shock changes."
I'm shooting from the hip here, but back in the day (till about 1990 in India?), speedometers were mechanical and worked on eddy currents affecting a piece of aluminum attached to the needle. The faster the magnet on the speedo cable would spin, the more the piece of aluminum would rotate.

The chances of one of these staying in place after an impact would be extremely low.

Nowadays, speedo needles are controlled by electric motors like so:
Name:  mo1 150822288_speedometer_pointer_with_good_appearance_s.jpg
Views: 5967
Size:  4.4 KB

From the little i know, they are not direct drive motors. They seem to be geared stepper motors (hence, the test-sweep at startup).
Supercar & Import Crashes in India-mo2-img_4966.png
image source


Now the very fact that it has gears in it means that it is more likely to hold position when the power is cut. Add to that, it was a longitudinal impact, which is less likely to force the needle or gears to move about their natural axis (as opposed to, say, a rollover or T-bone).

However, a severe enough impact (even head-on) could definitely wind the whole system a bit, or even cause the plastic teeth to jump. Coming to sudden stop even from 60 km/h can impart a LOT of force.

I guess the only point i am trying to make here is that we shouldn't use the frozen speedo as a definite indication of impact speed.

----

Also, this doesn't look like a 220 km/h impact to me - especially if the truck didn't have an under-ride bar.

However, the truck might have also been in forward motion, say @ 80 km/h.

220 - 80 = 140 km/h relative impact speed - which does seem more in-line with the damage shown, in my completely non-expert opinion.


Either way, you can't beat the laws of physics. Drive safe.

Last edited by Rehaan : 11th May 2015 at 19:43.
Rehaan is offline   (16) Thanks Reply With Quote
Old 13th May 2015, 17:18   #1179
JD1
BHPian
 
Join Date: Aug 2011
Location: Bangalore
Posts: 245
Thanked: 152 Times
Default Re: Supercar & Import Crashes in India

Quote:
Originally Posted by dj sulz View Post
Yeah true! I guess the only good thing from all this is that we can learn from this and make our roads safer. That could have been any of our dear ones in the auto and we need to together make a conscious effort to be safe and look out for the safety of other people who are on the road too.

I happen to know the driver of the car, and let me tell you - this isnt his first accident. Theres been an A8L and XJL crashed by him previously too. Q7 now added.

I know that he'l manage to get away with it due to influence, and other factors, but i really hope he too has learnt something from this and changes for the better. In the mean time lets all just make our streets safer!
Looks like Rajesh Reddy is in news again - this time for road rage in BMW. Per the report, he got rear ended by Etios and then demonstrated his road rage-
http://www.bangaloremirror.com/banga.../47253209.cms?
JD1 is offline   Reply With Quote
Old 15th May 2015, 17:00   #1180
BHPian
 
Join Date: Feb 2014
Location: Noida/New Delhi
Posts: 408
Thanked: 787 Times
Default

Got this on whatsapp. Looks like happened somewhere in Punjab. Judging by the pic, seems to be a nasty crash (I think that's foam on the car- probably there was a fire post the crash). Sincerely hope that the person driving the car and any co-passenger are safe.

Name:  ImageUploadedByTeamBHP1431689411.373718.jpg
Views: 6064
Size:  507.3 KB

PS: don't know when it happened.

Rohan

Last edited by RohanDheman : 15th May 2015 at 17:02.
RohanDheman is offline   Reply With Quote
Old 15th May 2015, 17:47   #1181
BHPian
 
aerohit's Avatar
 
Join Date: Aug 2007
Location: India
Posts: 844
Thanked: 540 Times
Default Re: Supercar & Import Crashes in India

Looks like a BMW 7 series coupe

Last edited by aerohit : 15th May 2015 at 17:59.
aerohit is offline   Reply With Quote
Old 15th May 2015, 18:05   #1182
BHPian
 
taranonline's Avatar
 
Join Date: Nov 2008
Location: India
Posts: 279
Thanked: 105 Times
Default

Its an e93 m3. Crash happened near ludhiana.
taranonline is offline   (3) Thanks Reply With Quote
Old 15th May 2015, 19:55   #1183
A.K
Senior - BHPian
 
Join Date: Jul 2013
Location: India.
Posts: 1,542
Thanked: 2,463 Times
Default

Quote:
Originally Posted by aerohit View Post
Looks like a BMW 7 series coupe

7Series coupe?! One, that is a BMW M3. Two, it's a convertible. Three, there is no 7Series coupe.

Last edited by GTO : 16th May 2015 at 17:07. Reason: Removed excess smileys. 2 smileys/post permitted. Thanks!
A.K is offline   (5) Thanks Reply With Quote
Old 15th May 2015, 20:37   #1184
Distinguished - BHPian
 
Sahil's Avatar
 
Join Date: May 2004
Location: Bombay
Posts: 5,175
Thanked: 1,996 Times
Default Re: Supercar & Import Crashes in India

Clearly hardtop convertibles aren't half as safe as regular coupes. The state of the roof is devastating. I guess the car turned turtle. Hope no casualties!
Sahil is offline   (1) Thanks Reply With Quote
Old 15th May 2015, 21:14   #1185
BHPian
 
aerohit's Avatar
 
Join Date: Aug 2007
Location: India
Posts: 844
Thanked: 540 Times
Default Re: Supercar & Import Crashes in India

Post deleted by the Team-BHP Support : Please do NOT post messages that add little or no informational value to the thread. We need your co-operation to maintain the quality of this forum.

Please read our rules before proceeding any further. We request you to post ONLY when you have something substantial to add to a discussion.

Last edited by GTO : 16th May 2015 at 17:09.
aerohit is offline   Reply With Quote Received Infraction
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
A look at the Supercar/Import section in the 80/90's..... v12 Super-Cars & Imports in India 54 13th September 2014 03:06
Mr.Bean crashes his McLaren F1 Supercar in UK kraft.wagen The International Automotive Scene 12 8th August 2011 21:35
Air India Express Flight from Dubai crashes at Mangalore airport - Over 160 Dead sidindica Shifting gears 114 29th May 2010 14:04


All times are GMT +5.5. The time now is 07:01.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks