The refined aston martin db9 is striking to look at and with v12 power it commands long straights and high speed corners with the r8 audi have set parameters of racing technology to deliver a stunning 187 mph car following a welcome and briefing from an instructor get driven around the circuit to help with familiarisation then take the driving seat of the awesome aston martin for six laps of this 1 mile oxfordshire circuit next but not least climb into the fantastic audi r8 for a further