Tubbed out '69 Triumph Spitfire. Unofficial weight with its prior 12a Rotary was 1100lbs.

I should also point out, that the rear suspension would likely have to be converted over to whatever car the engine came from... so the weight is likely to rise some. The stock rear end could handle 125hp from the little NA rotary, but I think it'd throw an axle with even 200hp to it.