Listen to Cab. Get a 24’. A 20 is hard to get enough tongue weight with a heavy car. I’d show you a picture of what it looks like when a 20’ is not quite loaded right and it hits a wet spot on a hill and a gust of wind hits you just right, but this is a hard sire to post pictures on. Not to mention cheap axles and the 15” wheels just don’t cut it for trailer tires. Ok. Added a picture. Bty, I think this one can be bought cheap!