the ZZII comes in many engine formats, you can get it in V12s and V8s and the I-6 TT, But the I-6 isn't the exact skyline engine, its upgraded a lil and dubbed the RB27DETT. and Bugatti was testing there monster and something went wrong so there was a lil delay, this was a lil while ago so no worries, but keep in mine there engine is detuned slighty. If you have the privliage to own one im pretty sure you can choose other horsepower numbers depending on there tuning. Because think about it, its like haveing 2 straight 8 twin turbos in your car! But if you want best bang for buck i recommend the Noble M12 GTO3R. It is 53k and does 0-60 in 3.5 (enzo territory) and 1320 in 11.8. now thats impressive. Also keep an eye out for chryslers ME Four-Twelve