<--this pretty much sums up my feelings of toyota. I love the supra and i own a SC300, but i don't understand why they don't create the MkV Supra. The primary reason the supra was pulled in 1998 were the terrible conditions of the the japanese stock market. These in addition to costs increases resulting from the lousy market is why nissan, and mazda pulled the 300z, and rx7, (the rx7 had other issues too.) Nissan and Mazda are both back with great machines (350z, rx8) and they are dominating the market. What is even worse is that nissan has TWO cars that rival where the supra was ten years ago (G35 coupe in addition to 350Z). Big horse power is back in, and often times the enthusiasts (all of us here) which only makes up eight to eleven percent of the total automotive market, dominates and guides trends. This is a marketing nightmare for toyota who desperately needs a sports car.
Now in terms of the I6 or v8 engine: the 2jzg(t)e engine(s) were beautiful and very powerful, even today. V8's are great, produce good torque, and are easy to produce. However, with the supra's lineage of only I6's and the fact that I6's are better balanced and unique in the market (minus BMW,) Toyota should create the 3jzgte. The inline engine which produces more torque than a V shape (read:I6 vs. V6) and has less mechanical dissonance.
Bottom line: TOYOTA, BUILD THE MKV SUPRA WITH THE 3JZGTE.