The R8 LMX features a 5.2-liter V10 engine, a top speed of 198.8 mph and lasers for headlamps. Yes, lasers. Photos by Audi

The R8 LMX is a limited edition model; just 99 will be built. Although it features a 5.2-liter V10 engine, exceptional acceleration and a ludicrous top speed, it’s coolest fe…