Editor-At-Large Arthur St. Antoine "escapes" to Las Vegas and beyond with three German supercars - the 2011 Mercedes-Benz SLS AMG, the 2010 Audi R8 V10...
Recognized for their extreme tuning of Lamborghini and Ferrari supercars, Underground Racing unveils the Audi R8 Twin Turbo. Equipped with a 5.2L V10, this German...