Yes, when improperly used, car covers can scratch your paint finish. But car covers can also preserve the finish of your car, if you do not have a garage available. If you have to park the NSX outside, your car will be subjected to ongoing punishment no matter where you live, guaranteed. Cats will jump on cars, scratching the paint as they go. The nicer the paint, the more they like to jump on it, clawing slowly intyo the piant as as they slide off the fenders. Racoons, opossums and squirrels do the same. I have seen birds scratch car paint with thier claws while pecking at thier image in side view mirrors. I have seen bird droppings etch right through the clear coat and into the color. I have seen pine cones and dried magnolia tree flowers pound on car roofs. A car cover will prevent accumulation of mineral deposits from sprinkler water droplets. A car cover can even protect from light hail stones. A cabled and locked car cover acts as a theft deterrent. A good outdoor car cover made of Noah material is waterproof and breathable and will prevent water, oil, dust, dirt, tree sap, etc. from collecting on the car. No, I am not in the car cover business, but I do practice what I preach here. I do look forward to having a garage, but for now I'll use a car cover while my pristine NSX is outside!