Dan,
SORRY but why not ask......Aston Martin, Chevrolet, Audi, Lotus,Cadillac, Ferrari, Ford, Jaguar, Lola, Mclaren,Mckee.......etc etc etc.... ..aluminum is their material of choice for high performance construction......

....sorry if you find this answer vague.......but I and others have covered this subject
many many times.
May be its time to ask your " learned " friends why they have concerns.....maybe you should fly to my shop in an alumium
Boeing and have a look for yourself... (they wouldn't happen to own tube frame Sports cars from the UK would they...???

)
The superlite is not constructed like the RCR range of replicas....
Google up a pic of a Group C style car such as a C9 Sauber Mercedes and have a look at the chassis ...then a Ford GT chassis pic...and a Ferrari 360/430 chassis pic...combine them all and you will have the Superlite Coupe chassis...enough said....
Oh and the Lotus is GLUED....imagine what people would say if RCR glued our chassis together.....the sky is falling.....
