Nah, both of the Silvia's are well developed cars and a lot of the EVO's have stepped up to the NZGT class.
Tony Olivers car is the ex-Mag and Turbo S15 that ran in SuperGT... It's trick. Malcolms S14 is one of the two Enduro cars that was built in Auckland. That and they're both kickass drivers.
There is an evo doing well in the class this year, but he normally does well in the handicap races.