Hmmmm...... starting in 1987
1978 Triumph Spitfire 1500 red (first car)
1978 Triumph Spitfire 1500 white
1977 Triumph Spitfire 1500 BRG
1990 Chevrolet Corvette Z51 (initially street, then converted to race car)
1968 Chevrolet Corvette 427/390 convertable
1985 Chevrolet S10 2-dr
1991 Chevrolet S10 2-dr
1992 Chevrolet S10 4-dr 4wd
2001 Chevrolet S10 4-dr 4wd
1981 Dodge Rampage
1986 Toyota MR2
1985 Honda Accord
1986 Honda Accord LS
1989 Honda Accord LS
1986 Acura Integra LS (race car)
1989 Acura Integra LS (street beater)
1984 Honda Civic hatch
1971 Triumph GT6 Mk III
1971 Triumph Spitfire Mk IV
1977 Triumph Spitfire 1500
1987 Honda CRX Si
1987 Honda CRX Si (race car)
1994 Isuzu Rodeo
1999 GMC Yukon
1997 Chevrolet Tahoe 4wd
2004 GMC Yukon Denali
2004 Chevrolet Suburban Z71
rough order, a lot of overlap in that list as there were times where there were anywhere from 2-3 cars around, up to one time when we had 7 cars on property. Storage becomes an issue when you have a car hobby.

-edit - forgot the Isuzu