V6 turbo with energy recovery on the turbo itself. They're also allowed to use that energy to re-spool the turbo to eliminate lag. They've also hugely bumped th

V6 turbo with energy recovery on the turbo itself. They're also allowed to use that energy to re-spool the turbo to eliminate lag. They've also hugely bumped the KERS and built it in to the throttle map - no more button for it. I can't remember the exact figures, but it means that they have so much torque when they go full throttle it'll spin the wheels at almost any speed. I'm looking forward to them slipping around the corners again. Also to engines blowing up, since that doesn't happen much due to 5 year old engine designs.