I think we should be able to customize our character and whatever we buy can either up our sales or lower costs. Like buying a tie could increase sales by 5% and buying a Mustang could lower costs by 10%. Great game!
Something cool I just thought of is that we should be able to customize our character and the customizes can give boosts. Instead of an animation of our guy buying his own things when we are supposed to be controlling him just don't seem right. I would never buy that car... I would buy a Mustang instead! :D
I enjoyed playing through and maxing all of the available cars, but I must agree with the other comments that it would be better if all of the cars and levels were available in one version.