Dan W me or Dan W someone else?
I don't see a reply from me here Dan. I am a fan of weight at the salt. You gotta use heavy stuff anyway, so might as well build it in. The Alfa weighed in excess of 2 tons, Dyno Room has stated that the Firebird is 5000# plus.
I haven't experienced a mile like Maxon yet, will be there on the 4/5th. I am guessing that the requirement is much like drag racing. You need to be light to accelerate the mass to some extent. But a dual purpose car will be on the heavy side.
DW