Here's a couple that might work...
Stunt Car Racer-more believeable Computer AI, more stomach churning tracks etc.
Cruise for a Corpse-although not strictly a rehash of the original per se', with the "detective" character, it could've paved the way for a "series" of mysteries & settings/locations. Unfortunately, point n'clicks have been rendered near lifeless thanks to Myst clone crap. Fingers crossed Revolution software succeed with Broken Sword 3.