Towing is no big deal, even towing very heavy. The trick is to drive like you're towing heavy. A lot of people don't seem to get that. I used to run about 130,000 lbs on five axles* with only a 350 Cummins to pull it and non-spectacular air brakes to stop it. I had no problems** because I knew the vehicle's limits and stayed within them.

*Generally not legal in the U.S. I wasn't in the U.S.
** Ok, there was this one time I got bogged down in gravel and snapped the jackshaft trying to get out. I got pulled out by a D7 and replaced the jackshaft with a spare we kept for just such occasions.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.