With a price of £145,645, a power output of 552bhp and a 0-62mph time of just 3.6 seconds the Audi R8 GT is the most extreme road-going version of the R8 to date. However, it's not the most extreme version of the R8 that you can buy. That title belongs to the R8 LMS.<br /><br />In the same way that Porsche sells its RSR 911s, Audi is offering this GT3 race spec R8 to customers for around €300,000. To find out what it's like, Marino Franchitti took us for a few laps around Blyton Park...