The next-generation Audi R8 will not be based on a Porsche-developed platform.
It was previously thought that this platform would also spawn the next-generation Audi R8 and Lamborghini Gallardo replacement, but Car and Driver is reporting that the next R8 will stick to an Audi platform, which means it’s likely the Gallardo replacement will too. Apparently the next R8, which is expected to arrive in late 2014, is already too far into its development to switch to Porsche’s Modular Sport Platform.
Before Porsche’s Modular Sport Platform came into the picture, Audi was reportedly developing an enhanced version of the current R8’s aluminum spaceframe for the car’s successor. The enhancements were to include the use of carbon fiber in the construction of the spaceframe, in particular, for the rear bulkhead between the seat backs, as well as for the engine compartment and B-pillars.