The SQ7 TDI is the first production model to get the electric bi-turbo technology first showcased in the Audi RS5 TDI Concept. The car runs a 48-volt electrical subsystem, allowing a wider and more flexible use of electricity, part of which involves storing impeller energy in a battery for use when the compressor needs to spin-up quick. The compressor can spin up to 70,000 RPM in 250 milliseconds, virtually eliminating turbo-lag.
This technology has been implemented in the all-new 4.0-litre (3,956-cc) V8, which builds on the 2,967-cc V6. The engine, with electric turbocharging, delivers 435 PS and, wait for it, 900 Nm of torque between 1,000 (!) and 3,250 RPM. Considering the engine would probably idle at around 850 RPM, it means that you have peak torque almost without getting off the brake. The ZF 8HP automatic transmission harnesses all that torque and sends it to the quattro all-wheel-drive system. The SQ7 runs 285/45 R20 rubber and is considerably lighter than the old Q7 4.2 TDI. Makes the 4.8-second 0-100 km/h dash sound believable, doesn’t it?
No word yet on whether the SQ7 TDI will make its way to India. Considering the SQ5 TDI was so well-received globally and inspired the SQ7, but never made it here, things don’t look too good unless we begin to receive better quality diesel.
Audi India will introduce the new A4 sedan next, with more launches will follow. Until then, watch out for post-budget price revisions.
Story: Jim Gorde
