I found a early news letter after the first season of Vee racing in Ireland. Ivan was runner up in the first season. He said his car was one of the first chassis's an heavy. It didn't preform so good on the circuits but suited the hills better. The season was a mix of hill climbs an circuits. Shay Lawless had a Belgian Vee but it was apparently unreliable.
Sorry for poor quality pic.
Sorry for poor quality pic.