Cool little car (the Festiva) but I know what you mean about driving around something that doesn't have any guts. My Chevette was pretty darn slow by LA traffic standards, and that was with 37.5hp at the wheels! Best mpg I could ever get in town was about 40mpg, but it could go 80mph as long as the ground was flat
Good luck on the Tracker project, turn up the pump a little and give 'er some fuel!