I've always had a thing for Toyota. The Castrol Toyota Supra was perhaps a dream for many of you gamers when you started out in Gran Turismo 1. Thankfully, you can win that machine in Gran Turismo 2 and have its 680 horses at your side. To me, ANY JGTC Supra is a good choice. The Castrol Supras are quite lively with their white cars with red and green accents, symbolic of Castrol. I think the Castrol Supra from GT1 is pretty fun. I'm pretty sure it was around racing in the JGTC, since the JGTC (now called Super GT) has been around since 1993 or 1994.
Get the most recent Toyota Supra. Get yourself the Denso Sard Supra. Or bag yourself the Castrol Supra from GT1. Can't go wrong with its balance of power and good handling. I think the Toyotas are the most balanced of those race cars.