Audi TT TDI Coupe and Roadster at the Geneva Motor Show

The diesel TT is here. Audi will unveil the TT TDI Coupe and Roadster at the Geneva Motor Show next week. It was always an obvious thing to do, yet it’s taken the Ingolstadt slowcoach ten years to send its ubiquitous sports car to the black pump.

Precisely. There’s really nothing revelatory about the principle behind the TT TDI, which is why we’re surprised it’s taken Audi so long.

Having said that, let’s not be too glib here – the TT TDI is remarkably efficient, returning well over 50mpg in both Coupe and Roadster forms (53.3mpg and 51.3mpg respectively) and its torque advantage means it will feel genuinely fast.

Let’s be honest, a 0-62mph time of 7.5 seconds (7.8 for the roadster) isn’t gut-wrenching, but the 168bhp diesel engine has 258lb ft of torque at only 1750rpm – 22lb ft more than the 3.2 V6 petrol – and is good for 140mph.

The TT TDI utilizes the same 141bhp 2.0 TDI engine found in the new A4, but the saloon’s tubocharger has been dropped in favor of a bigger unit. Add to that standard Quattro four-wheel drive and the Audi TT looks like it might become the pick of the range.