Testing out their aluminum Audi Space Frame (ASF) technology used on the R8, TT, and A8, Audi applied the lightweight construction method to a prototype A5 coupe. The lightweight A5 is 242 pounds lighter than its steel-bodied brother, which gives it a power-to-weight ratio of 159-hp per ton, only 11 hp per ton shy of the more powerful 3.2-liter V6 A5. The normal A5 weighs in at 3130 lbs, while the lightweight version comes in at 2888 lbs, thanks to the use of the aluminum architecture and some carbon fiber parts
Audi doesn’t plan to produce the A5 with this technology right away, but expect to see it in the next generation A5, as well as other Audi vehicles in the next few years. Audi also noted that they will need to implement lightweight design principles in their electric vehicles in the future, since electric drivetrains tend to be very heavy.5.2-liter V10 version, an R8 Spyder, and a V12 TDI version (which has since been cancelled.) Now they’re testing a hardcore lightweight version of the R8 V10, which will be for drivers who take their cars to the track.
The lightweight R8 V10′s aerodynamics you see in the pictures here have been modified slightly to include a front spoiler and rear fixed wing to increase downforce. A moderate power increase is also expected, but don’t think it will surpass the Lamborghini Gallardo LP560-4′s 552 hp. Something in the 530 hp range is a reasonable bump up from the V10′s 518 stock hp.
The lightweight R8 V10 will lose some weight by removing unnecessary luxuries like air conditioning and audio system, and will likely replace the leather seats with lighter sport seats. Extensive use of carbon fiber will also be likely. It will probably keep the signature quattro AWD system.