"TAC is open to cars that are or were production models... all cars must have original chassis and body... must have original VIN plate...
No tube/space frames allowed except in prototype class... Chassis must remain OEM... body panels may be made of any material"
All of the above and changes to them is at the organisers disgression.
The AGFocus is clearly not compliant with several of the above regs but ask about the prototype class? AG could build you one that was though.