AUDI is further expanding its TT range by introducing a 2.0 TDI quattro S tronic, the third generation successor to the popular quattro diesel coupe and roadster models.

The newcomer, with quattro all-wheel-drive, slots into the line-up alongside the established front-wheel-drive TDI and it is available to order priced from £34,230 with deliveries due in the spring.

It comes with a six-speed S tronic twin-clutch transmission wedded to a 184bhp 2.0-litre engine.

Sprint time of the new TT reflect the traction advantages, with zero to 62mph in the coupe dipping to 6.7 seconds compared to 7.1 seconds for the TDI ultra, while top speed is a 145mph.

In the roadster, 62mph takes 7.0 seconds, three tenths quicker than the ultra, with a 142mph top speed.

Despite now being four-wheel-drive there is only a marginal decrease in fuel consumption. A claimed combined figure of 52.3mpg is achievable on the coupe with a CO2of 142g/km.

As a roadster, the TT 2.0 TDI quattro S tronic returns up to 50.4mpg, with 147g/km of CO2.

Prices range from £34,230 for the TT Coupe Sport model and up to £39,995 for the TT Roadster Black Edition.