Sorry, not to offend you, but this is a stupid question. A 250cc motorcycle is faster than most cars, especially something as pedestrian as a Subaru, much less a 900cc sportbike. A 900-1000cc sportbike is about 400-450lbs and has 125-130hp at the wheels. The Subaru is about 3300lbs without driver and has about 240hp at the wheels. To be just as fast, the Subaru would need toe ither be 800-900lbs, which won't happen, or will need about 900hp, which in most cases won't happen either.
