Forza Touring MP 1 car that’s weak. Needs a boost

So enjoying the Forza Touring on mp. Max out the Honda, VW, and the Audi. With them, and setting them up. I’m least competing top 5, podiums and maybe a win or two. So now a new car. I take the Subaru, this car sucks bad. It handles and brake just as good like the rest. But it can’t accelerate at all with them. No matter what you do with the gears. Even tho it like top 3 I believe in the hp/weight ratio in this class. It can’t compete at all. I’m in the back of the pack like crazy. Did this car really sucked that bad in it class in real life?