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Audi S1 becomes Audi A1 1.4 TFSI

The Audi S1 becomes the Audi A1 1.4 TFSI Audi let it leak they were working on making a hot version of the Audi A1, and we fully expected that the Audi S1 would turn up at the Paris Motor Show. So when we heard that Audi had confirmed – but without detail – that the Audi S1 would be at Paris everything made sense, apart from the lack of detail. But now we know why we got no detail – Audi has backtracked on the S1 and has instead planted the oily bits from the Polo GTI in to an A1 and Christened it the Audi A1 1.4 TFSI.

Silverstone unveils new F1 Circuit

The new Silverstone F1 Circuit was revealed this week Bernie will be pleased It’s been a bit of a saga for Silverstone and the BRDC of late, with a backwards and forwards ‘will-they, won’t-they’ get to host the British Grand Prix going forward. Bernie Ecclestone finally announced that Silverstone would host the 2010 British Grand Prix back in December  - although it could be argued only by default after Donnington went belly-up – and the circuit upgrades are nicely in time for the 2010 British Grand Prix in July. Prince Andrew did the official opening on Thursday and got the chance to lap the track in a 2-seater F1 car with Damon Hill at the wheel and former F1 driver – and now BBC pundit – David Coulthard also on track in a Red Bull.

One Lap of the Web: A homebuilt KITT, and Tacoma vs. your girlfriend

Hagerty is profiling a homemade version of KITT from the "Knight Rider" TV series. Builder Chris Palmer needed five Pontiac Trans-Ams, tons of visits to eBay and hundreds of hours of work with help from friends. Check out the result here.