Yeah, what Simon said. Just go into Machine Settings and change the Brake Balance higher. But, be careful when you make the brakes brake harder, you tend to vuranable to more spinouts. Just put the brake at about 18-20 something like that, remeber, the Jag ways a ton, so that's why it doesn't stop the way you want it to.
Also, that Jag is going to last you a long time. It's a very nice car.
-Sam