Hub Page Valuation Tips

The 1989 five-speed 930 is generally considered the best-driving version. Porsche finally replaced the long-serving four-speed with the G50 five-speed for 1989. SCM notes that this made a meaningful difference in normal driving and helps make the final-year cars especially desirable. The earliest 1975–76 cars and the 1979 model year have historically carried higher values…

For Carrera 3.2s, the 1987–89 G50 cars command a premium over earlier 915-transmission cars. The stronger G50 gearbox, hydraulic clutch and associated improvements make these later Carreras the most sought-after of the standard 3.2-liter cars. The 1989 model is particularly favored. Unusual factory colors can add a substantial premium to an air-cooled 911. SCM says…

Competition specification can dramatically increase the value of a California Spider. Competition cars can have lightweight alloy bodies, larger fuel tanks, outside fillers, hotter engines, velocity stacks, cold-air boxes, high-lift cams and other specialized equipment. SCM stresses how deeply individual specification affects California values. Later California Spider engines are generally more desirable than early inside-plug…

Verify that a claimed 1965 Mustang V8 actually left the factory as a V8. Many six-cylinder Mustangs have subsequently been converted to V8 power. Check the door/fender codes and date-coded components. SCM suggests converted cars deserve a substantial discount from the value of a factory V8. Rust is one of the fundamental things to check…

Correctness is one of the biggest determinants of 1954 Corvette value. SCM’s analysis emphasizes correctness and condition. Accurate details combined with an exacting restoration can justify a substantial premium. Factory-correct details need to correspond to the car’s position in the 1954 production run. Chevrolet made numerous running changes during 1954, including changes involving the camshaft,…