I know the feeling and don't even have a garage! Group them by specific project - the ones that you simply do not have time for or will "get to someday" you're probably better off selling.

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth