There’s that old saying, just because you can doesn’t mean you should.
I drive a plane 8-9 hours some days but that’s not by choice and I’m not the only one in the pit of cocks. I do notice I’m not as alert after that amount of driving a plane, personally I’d never drive that long in a single day, I value my life more. Stay safe and ask yourself, is it really necessary and is money the driving factor?