It’s been awhile since we have last visited Mat Watson and carwow so let’s bring them back with a bang. This time, it’s Audi Sport stablemates going head to head: an Audi R8 Spyder V10 performance versus an Audi RS 6 Avant performance…the latest kid on the block. The R8’s 5.2L naturally aspirated V10 has 620hp, 428lb-ft of torque, and weighs in at 3,736lbs while the RS 6’s 4.0L twin turbo V8 has 630hp, 627lb-ft of torque, and weighs in at a hefty 4,608lbs. Will the RS 6’s power overcome its weight disadvantage over the R8? Find out below…you may be surprised.