Engine Lab: Simulator & Sound

• New Challenges: build a car to a brief, run it on the simulated test track and earn medals, with Game Center leaderboards. • New Vehicle tab: put your engine in a 3D car with a gearbox, driven wheels, tyre slip and working brakes. • New experimental turbo with spool, wastegate, intercooler and knock control, and boost on Drive. • More to tune: port fuel injection, custom cams, headers, runner lengths, throttle body and crankshaft types. • Dyno pulls now run on the physics, and Live graphs show temperature and fuel for every cylinder. • One redesigned Drive cockpit on iPhone and iPad, with brake, throttle and hold to rev. The rev limiter now cuts fuel too.