Audi has provided car reveal a tantalising peek of what might, in the near future, ended up being the basis for a variety of high-performance turbodiesels aimed squarely at driving enthusiasts. as well as the 380bhp, 174mph RS5 TDI-e idea previews what might be the 
first diesel Audi to wear an RS badge.
Under the bonnet is a heavily boosted version of the next-generation 3.0-litre V6 TDI biturbo, total with ‘e-booster’ innovation that contributes towards the thumping 750Nm of torque, established from just 1,250rpm.
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With a declared 0-62mph time of four seconds as well as a 174mph top speed, the performance definitely seems deserving of RS status. The function of ‘e-boost’, a little electrically driven blower plumbed in between the intercooler as well as the induction system, is two-fold.
Even diesel engines with two-stage turbos – the smaller turbo spinning up much more quickly to produce increase at lower revs as well as smaller throttle openings before the larger system shoulders the workload – can experience from a temporary dead area when pulling away from rest because of the mass inertia of the turbocharger impeller.
The electric turbo gets this spinning quickly before the hot exhaust gases can do the task effectively, providing much more instant throttle reaction away from rest as well as getting rid of off-boost lethargy when you get back on the throttle at, say, the exit of a bend.
The system operates as much as 3,000rpm, at which point it’s no longer needed as well as bypassed completely.You may believe a diesel ‘RS5’ would struggle to online with a 552bhp RS6 Avant speed vehicle being pushed difficult by a pro chauffeur around the twisty 2.1-mile Audi centre dealing with circuit. believe again.
The striking thing is exactly how simple it was. The deep bass of the exhaust note may be artificially enhanced, as well as seems much more V8 than V6, however it’s completely in keeping with the simple and easy method the RS5 TDI-e piles on speed, riding a seemingly unlimited wave of torque that punches the vehicle out of sluggish bends with a ferocity not even the RS6 can match.
Although top power is established at a moderate 4,200rpm, all of the engine’s prodigious torque is offered from just over tickover as well as Audi’s excellent eight-speed car box keeps the action flowing.

Twenty five years after creating its very first diesel, Audi’s commitment to the future of this engine tech is obvious.
The RS5 V6 TDI-e proves that diesel is a viable alternate to petrol power for the sportiest Audis as well as that ‘e-booster’ electric turbo tech brings considerable gains in throttle reaction as well as driveability. We’re looking ahead to the very first production diesel RS, which might show up as soon as next year.