Long door cars came in in the autumn of '97 Howard. The easiest way to tell is by the windscreen demist - does it have air vents in the dash top, or wires running through the screen...
At the same time as long doors, stainless bulkhead and inner wings became standard fit.
If Canbus is your deciding factor all trad +8 (i.e. not ally Aero chassis) will apply...
