 New 5-spoke 16-inch wheels became standard on the Z28 this year (17" ZR-1 style on SS coupé models) available in either polished, chrome, or white (only on the 30th Anniversary models), replacing the previous 10-spoke turbine style design.An additional 108 30th Anniversary models were modified by SLP Engineering equipment with the LT4 V8 engine having a power output of and of torque.100 cars were allocated to the US market while 6 cars were sold to Canadian buyers.