Paint you Car with a Roller?
An example of a small paint repair using Rust-Oleum and 4 inch foam rollers.
Original paint was chipped and very worn. It was stripped and the hood spray primed.
The color was rolled on then sanded. This was repeated three times.
When done actually looked better than the rest of the truck.
First Coat
Gentile hand sanding then Second Coat
More Sanding and The Final Coat