Following the recent introduction of a new entry point for the TT range in the form of the 160PS 1.8T roadster, Audi has also brought in a new range topper, the TT RS.

With an all-new 340PS 2.5-litre turbo petrol engine, the RS model is surprisingly efficient on tax. It’s not often you find an insurance group 20 car in anything other than the top 35% tax banding, but the Audi TT RS with its 4.6 second 0-62mph time comes in at 30% for benefit-in-kind which is two points lower than its main rival the Porsche Cayenne S.

The fastest Audi, even at 88.4p per mile, is also £2000 less expensive than the Porsche. This cost difference also puts the £42,715 price into perspective.

To drive the Porsche may be fractionally more fun, thanks mainly to the level of steering feel and rear-drive set-up. But the TT is significantly quicker, thanks to all-wheel drive and because of this, it’s much easier to drive quickly.

The TT is also much more practical having a hatchback-style boot and includes folding rear seats.

If your top execs will insist on a high performance sports car, the TT RS is a more sensible choice than most.

Audi TT RS 2.5T 2dr manual
P11D price £42,715
Model price range £25,420-£44,885
Fuel consumption 31.0mpg
CO2 (tax) 214g/km (30%)
BIK 20/40% per month £214/£427
Service interval variable
Insurance group 20
Warranty 3yrs/60,000mls
Boot space (min/max) 290/700 litres
Engine size/power 2480cc/340PS
Top speed/0-62mph 155mph/4.6secs
On sale July 2009
Score 8/10
Verdict A great drive and a
surprisingly good
business proposition,