Just an idea, it might bring more trouble than its worth.
You could almost garuntee 90% of Toymodders cars don't comply with ADR37 and this could cause some un-needed heat if he were to start scanning the forums for alot of people.
Any car with a pod filter,exhaust of larger than factory diameter or intercooler etc etc immediatly classes you as in breach of ADR37 under the new understanding of it.