I remember last year a '96 grand am won the 4 cylinder class, It was it dam good shape and that thing turned into a geo metro lol looked funny, That thing kicked some butt against the older cars with metal bumpers i was surprised that that plastic lasted soo long. I love demo derbie's!! I'm guessing that the gp would end up in the bigger class with v8's but im not sure how that works out, but it would be good if it did end up in the v8 classes because v8's are not always good cause they heat up much quicker, id say the 3800 is perfect for it.