ok the GTR engine is the same with a higher out put (164bhp) we think this is due to the higher rate of fuel used (100 ron) and slightly more agressive ecu program. Always use an octane booster in your fuel. The gtr came with a host of xtras not found in the uk market these included Electric fully adjustable seats, retracting mirrors, Climate control, air con, and the Super live 8 speaker sound system with cd/tape/radio (one of the best standard sound systems available)
Marty