Dimensions: The dimensions below are those of a 1982 Firebird. The Trans Am may have been minutely different, especially when option packages were added on. But these figures are very close.

---------------------------- Exterior Dimensions ----------------------------

Wheelbase       2566 mm / 101.0 in        Overall length  4823 mm / 189.8 in
Width           1830 mm /  72.0 in        Overall height  1264 mm /  49.8 in
Tread, front    1541 mm /  60.7 in        Tread, rear     1540 mm /  60.6 in

----------------------------- Interior (Front) ------------------------------

Head room        944 mm /  37.2 in        Leg room        1092 mm /  43.0 in
Shoulder room   1466 mm /  57.7 in        Hip room        1430 mm /  56.3 in

------------------------------ Interior (Rear) ------------------------------

Head room        918 mm /  36.1 in        Leg room         727 mm /  28.6 in
Shoulder room   1430 mm /  56.3 in        Hip room        1087 mm /  42.8 in

----------------------------------- Other -----------------------------------

Cargo index volume w/ rear seat up      312.0 liters      or  11.0 cubic feet
Cargo index volume w/ rear seat down    875.0 liters      or  30.9 cubic feet
Fuel tank capacity                       60.5 liters      or  16.0 gallons