The garage is too small...( (Need for Speed: Most Wanted (2005))

Here I once again decided to go MW. Set yourself a Black Edition and I thought - well, here again all the same... tired. Downloaded trainer and as you progress through buying all available cars, tunningley, in General, enjoy life... And then op! It turns out the garage only holds 13 (or 15, can't remember exactly) machines. It's sad, because to sell there's nothing I want.. is There a way to increase the number of slots in the garage?