has a 3rd gen got a chassis

[KERRSURF]

Yes, they do. But some have a separate chassis/body, some are monocoque construction.

Modern cars are monococque (Chassis and body are combined, with the body providing some of the chassis' rigidity) Surfs are separate.

So whats a tube built vehicle with only panels attached providing no rigidity?

[BUSHWHACKER]

so whats a tube built vehicle with only panels attached providing no rigidity?

exo?

[KERRSURF]

exo?

mm could be, what does VOSA say, I might build one next year.

[Predictable Bob]

he shouts at everyone, its his age, he thinks he's talkiing quietly...

eh ? Speak up son !