Here are some pictures with OEM tires. I have a set on my car. Yes they look wimpy especially from the rear, and they don't feel good on the road. I have decided to take mine off and go with wider tires, and just keep the OEM's as a spare. Good for originality show, but not for GO!
Adjustable shocks so the car can be lowered would improve the looks IMO, but then you are breaking from originality again.