Just for ****s and giggles, I posed this question to the o3 version of ChatGPT. It went off for over 4 minutes trying all sorts of hypotheses about the significance of the number 1763. Finally it suggested that it might actually be 176.3 which is very close to the reported maximum speed of the car in mph which is 176.
I present this for entertainment purposes only, not in any way to diminish the achievement of Chief Pontiac
One of the sources -
Chevrolet Corvette ZR-1 C4 0-60 mph, quarter mile (1/4 mile), top speed, 0-100 kph and 29 other acceleration times
accelerationtimes.com