We have two cars in our household, and I enjoy working on both of them. One is a 1979 VW Beetle Convertible, the other is a 1992 GMC Jimmy 4X4. Over the years I've had several projects on each one that were both enjoyable and maddening.
Here's a list of each project. The links have details.
Rear-view mirror with compass and outside temperature
Projects coming up include factory style fog lights, a larger gas tank, and a power outlet panel (both 12VDC and 110VAC) in the dashboard.
Projects coming up include a new convertible top and a new paint job. Hopefully they'll happen at the same time!