All the Supra, 350z, M3, Evo and Scoobie owners I know complain about the upkeep and poor fuel economy. Although you know when you buy these cars it isn't for any of those reasons.
The poblem is that so few cars give DC5 level of performance, comparative low running costs and reasonable fuel consumption when driven steadily. This is the reason I own a DC5 and use it as my daily driver so I can enjoy my drive to work without breaking the bank.
The only car I would consider instead is an FD2 Civic Type R, I think they are the perfect car, not necessarily better than the DC5, just a bit more practical with 5 doors.