ZR6 - power pass seat, heated exterior mirrors, auto dipping exterior mirrors (can be switched off!), rain sensing wipers, rear sun blind, sunroof, sat nav + 8 speakers & amp under drivers seat, leather, keyless entry & start. The list goes on... wouldn't be without my keyless entry - no fumbling in the supermarket carpark... upgrade model, of course. Forgot the clearance sonars, auto dipping interior mirror & drivers seat memory. Need I say more?