We've towed several cars behind three different motorhomes with three different dollies.
The only issue we had was descending into Death Valley the surge brakes on our Master Tow dolly got hot. I was using the Jake brake on the motorhome and it in turn activates the dolly surge brake. Just had to pull over and let it cool down. Next time I'm purchasing a dolly with electric brakes so I can dial them back.
Several years ago we towed a rear wheel drive Lexus LS400 on a dolly backwards. We drove 3000 miles with out an incident.
Some of the things we've learned is to buy a dolly with built in ramps. It just makes it easier. We also use a pair of 2x10 boards to make driving up the ramp easier.
Buy the aftermarket tie down straps. The ones that come with the dolly are okay, but the aftermarket ones on Amazon are far easier.
You need a dolly with a turn table.
Make sure the coach and dolly are pointed straight ahead before loading.
Always check the straps after about 15 min of towing, especially when new. They have a tendency to stretch.
Most companies offer two dolly widths. Get the wider version so you have room in turns.
I installed a hitch on our car. I use this to move the dolly around campgrounds.
The first time loading took an hour, the second time 20 min. Now I'm sure we can load our dolly in under 10 min. Just takes practice.
97 Monaco Windsor- Sold
07 Monaco Executive McKinley- Sold
04 Monaco Signature Chateau IV