Audi has launched the new S6 in India, which essentially is a high performance variant of the its A6 Sedan. S6 comes with a 4000cc V8 engine which makes 420bhp. This 4.0 TFSI engine is mated to 7 speed S-tronic transmission, which is Audi's version of Dual Clutch transmission. This engine gearbox combo helps the S6 achieve a 0-100kph time is 4.5 seconds, which is 0.7 seconds faster than the previous generation S6 which came with 5.2 V10 TFSI engine. The last generation S6(C6) was not sold in India.
To help with the emissions and Fuel Economy, this engine comes with cylinder de-activation system. This 4.0 TFSI is also used in the S8 where it makes 520 bhp but comes mated to 8 speed ZF automatic transmission.
In International markets, S6 is not a competitor to BMW M5 and Mercedes E63 AMG, it is the RS6 which competes with these cars. S6 is positioned against BMW 550i and Mercedes E550. The RS6 version for C7 Generation of A6 is yet to come out.
S6 is essentially a souped up high performance variant of the A6 sedan. This car is targeted at someone who does not want to compromise everyday usability but still wants the car to be Sporty.
I got an oppurtunity to drive the Audi S6 on the Buddh International F1 Curcuit.
There is not much on the outside to Distinguish the S6 from the A6. Almost all of the body panels are same. Front bumper has some changes, the grille and bumper get some changes in the front, at the rear a lip spoiler is added but the boot remains the same. Quad Exhaust pipes and the diffuser panel at the back are the most prominent changes apart from the huge rims.
The real world performance from the 4.0 V8 engine is nothing short of phenomenal, even when i drove the S6 back to back with the R8 V10 plus, i did not miss any of the horses. The acceleration and overall performance is easily in the supercar territory. Those who have driven the earlier gen V10 equipped S6 will miss the Formula car like engine note, but this V8 sounds reasonably sporty. Flooring the accelerator pedal literally pins you to the seat. The engine stays very strong all throughout the rev range, in D mode there still is some lag, the kind we normally associate with VAG group DSG gearboxes, due to the missing Torque Convertor maybe!
The handling though is a different story, it is not bad at all, but in effort to retain everyday usability and considering the mammoth dimensions with all the creature comforts retained the car isn't as track focussed as the proper sportscars. I'd also blame this on the other car i drove before the S6, the Audi R8 V10. For a car that is almost 5 metres long, and comparing it to the standard A6 variants(the ones with Quattro), the body control and agility is pretty impressive.
Out on the track, switching off the ESP compeletely transforms the handling behaviour, though ESP cannot be completely switched off. With the ESP off, the ESP system lets the car slide a lot more and the handling is more engaging with lesser electronic intervention. Even from the note of the tire squeal, you can easily make out the ESP now is switched off. For a four wheel drift, just floor the A pedal coming out of a corner with Esp off, and all the four tires struggle for grip. Within 2 or 3 laps, on a long sweeping curves, i could easily control the level of under and over steer with just the Accelerator pedal with steering held steady. Easily the main highlight of this car is the performance on offer. In dynamic mode the steering weighs up real heavy for a Audi road car, though it still isn't not as feelsome and direct as most of the BMWs.
The drive was on a very smooth surface, so i really cannot give you a idea on how well this car will adapt to our Indian road conditions. Judging by the big difference in the handling in comfort mode over the sporty Dynamic mode, that makes me guess the Air suspension should be reasonably comfortable for the daily abuse on our potholed roads. In comfort mode with D mode selected in gear selector, the power delivery and gearshifts were as smooth as you would expect from any tuned for comfort luxury sedan, the aggressiveness and the associated jerkiness associated with rapid shifts was completely toned down.
The Interiors are as spacious as the standard A6. The rear seats are very comfortable, with loads of room even for six footers to stretch their legs. The fronts seats. The front seats were supremely comfortable, with a lot more side bolstering. The interiors retain almost all the creature comforts from the standard A6, and maybe more might have been added. The add to the sporty feel, the black interiors get an overdose of Aluminium finish.