
In the S6 and S7, the 4.0 TSFI is rated at 414 horsepower and 406 pound-feet of torque, compared with 435 hp and 398 lb-ft in the previous S6. With power delivered to all four wheels through a seven-speed S tronic gearbox, 0-60 acceleration is trimmed to less than 4.8 seconds in the S6 sedan and to less than 4.9 seconds in the S6 Avant and the S7. Top speed, as usual, is electronically governed to 155 mph.
In the flagship S8, the 4.0 TSFI is boosted to 512 hp and 479 lb-ft, compared with 450 hp and 398 lb-ft in the previous S8. With power flowing through an eight-speed Tiptronic, 0-60 acceleration is slashed to less than 4.2 seconds, from 4.9 seconds for the older 5.2 V10 version.
I think it's the latter, Deckhook - purely that the smoother, more creep-capable, more geared, 8 speed automatic would be more appropriate in a large luxury - albiet sportier - limousine.
Interesting thoughts though... who makes Audi's inline AWD-compatible 7 speed S-Tronic 'box (ZF?) and who makes BMW's 7-speed M-DCT RWD gearbox in the M5 (Getrag?)
Also is the 8 speed automatic transmission in all these new models the ZF 8-speeder?
Dunno. South, UCG or Wunderkind to the rescue...
Formidable competition for next years M550d the M750d and the M650d Gran Coupe.
Competition in what? Economy?Formidable competition for next years M550d the M750d and the M650d Gran Coupe.
Interesting thoughts though... who makes Audi's inline AWD-compatible 7 speed S-Tronic 'box (ZF?) and who makes BMW's 7-speed M-DCT RWD gearbox in the M5 (Getrag?)
Also is the 8 speed automatic transmission in all these new models the ZF 8-speeder?
Dunno. South, UCG or Wunderkind to the rescue...
BMW M DCT and VAG DSG are made by Getrag. All 8 speeds from BMW and Audi are ZF![]()
Excellent knowledge! How do you know this?![]()
We use essential cookies to make this site work, and optional cookies to enhance your experience.