When we researched toads 3+ years ago, the manual trans Mini Cooper was a real vehicle of interest for us. A lot of folks are towing them. As I recall, the manufacturer does not recommend that they be 4 down towed, but the consensus was that this was more of a “cya” action on their part.
FYI, Manuals for most all late model cars can be found on-line.
We tow a Chevy Spark, with manual trans, which weighs 2300 lbs, making it ideal for the MBS Sprinter based class C’s.
Bob & Cynthia
2017 SunSeeker MBS 2400W