Opel GT 1968–1973 vs Porsche 911 1989–1993 size comparison

Porsche 911 1989–1993 is 137 mm (3.3%) longer than Opel GT 1968–1973. It is 72 mm (4.6%) wider, 85 mm (6.9%) taller and 159 mm (6.5%) shorter in wheelbase.

Dimension	Opel GT 1968–1973	Porsche 911 1989–1993	Difference
Length	4113 mm	4250 mm	+137 mm (+3.3%)
Width	1580 mm	1652 mm	+72 mm (+4.6%)
Height	1225 mm	1310 mm	+85 mm (+6.9%)
Wheelbase	2431 mm	2272 mm	-159 mm (-6.5%)

Opel GT 1968–1973 dimensions · Porsche 911 1989–1993 dimensions