I have both an 2000 C5 and a 2005 SSR. The C5 is a far more refined vehicle and I really miss the HUD on the SSR. But the top and the cool factor make the SSR truly unique. I am surprised by the SSR engine temp but I expect these temperatures in today's vehicles. Put a low temp thermostat in the Corvette but I suspect the computer controls the bottom line and the thermostat doesn't do much. The SSR runs cooler with the A/C on and keeps the temperature gauge pretty steady - which again is probably how it is suppose to work.