 1993 was the only year interior instruments had yellow lettering (this is one way to tell the 1993 models from the 1994 which had white interior instrument lettering).The high performance Z28 model came with rectangular dual exhaust tips to distinguish it from the base models.The Z28 featured the 5.7 L pushrod LT1 V8 engine having a power output of and of torque that had been introduced on the Corvette one year earlier.