Maybe Arrows team would have survived by selling trackday versions of their 1+2 seater F1 car?
http://www.wheels24.co.za/Motorsport/3- ... A-20040121
They could even supercharge the engine to get true F1-like performance despite the higher weight and more drag.
Maybe besides F1 funding, the 3 seater might have ended up being a (barely) road legal car?