It's an RE Amemiya Super GReddy 8, or in other words, a heavily modified Mazda RX7 ;) I know because I drew it once (https://www.instagram.com/p/5IQPZQiWR7/?taken-by=oyvind_sabo), but if I was to give away the tell-tale signs, I would say the doors, and the fact that RE Amemiya is well known for their porsche-like front conversions.