Audi has given its halo car, the R8, a significant refresh for 2013. Both the 4.2-liter V-8 and the 5.2-liter V-10 are soldiering on for remainder of the R8’s first generation, but we’ll be giving a sad (okay, it’s not sad at all) goodbye to Audi’s R-Tronic automatic transmission. In its place will be a new, seven-speed S-Tronic dual-clutch gearbox.