In 1:18 scale, the AutoArt is by far the best choice, and since you need a red one, you're in luck. They only offer it in red with white stripes, or yellow with black stripes. Beanstalk offers white with blue stripes, silver with black stripes, and black with white stripes, but the detail is a step or two below AutoArt. AFAIK, no one offers a model without stripes, and no one offers a version with the optional BBS wheels.
The 1:10 scale GMPs are the most detailed models available, but they only do the GT 40s, no modern Ford GTs. I've got their 66 winner and a 67, and they're both beautiful.
If your car's pimped out with 24" rear wheels & 20" fronts, Jada makes a pretty good representation in 1:24 scale, available in 4 or 5 colors.
Model collecting is one of my passions, and between the 1964 through 1969 GT 40s, and the 2005-6 GTs, I've got about 60 models, which includes around 12 in 1:64.
Ric