I had a '59 Jag Mk IX for a while in the late '60s when I lived in LA . I had a fantasy a few months ago about how cool it would be to upgrade the drive train of one of these great cruisers and pull a small airstream. They've got the wheelbase, frame and weight. But it would be a project, for sure.
transmission - The jag certainly has a tranny strong enough for a 390 hp V8, but how about duty-cycle. There is a difference between running hard (full throttle) up through the gears then leveling off at cursing (cruising?) speed, and pulling a trailer hard hour after hour. That might require a transmission cooler at a minimum.
My guess, based on some aerodynamic assumptions and running numbers through an online aerodynamic drag calculator, is that towing an Airstream at 60 mph requires about the same horsepower as solo cruising in the 90-100 mph range. Easy running for any well-designed car.
My little Jaguar X-Type with the tiny 2.5 liter has a tow rating of 3,400 pounds. It's probably not out of the question, although I can't recommend it.
Interesting Jag TinLoaf. Here are the specs on your X-Type....
ExteriorLength: 183.9 in. Width: 70.4 in. Height: 54.8 in. Wheel Base: 106.7 in. Ground Clearance: 6.1 in. Curb Weight: 3428 lbs. InteriorFront Head Room: 37.8 in. Front Shoulder Room: 54.5 in. Rear Head Room: 37.5 in. Rear Shoulder Room: 53.7 in. Front Leg Room: 42.4 in. Rear Leg Room: 34.4 in. Luggage Capacity: 16 cu. ft. Maximum Cargo Capacity: 16 cu. ft. Maximum Seating: 5 Performance DataPerformanceAcceleration (0-60 mph): 7.9 sec. Base Number of Cylinders: 6 Base Engine Size: 2.5 liters Base Engine Type: V6 Horsepower: 192 hp Max Horsepower: 6800 rpm Torque: 178 ft-lbs. Max Torque: 3000 rpm Drive Type: AWD Turning Circle: 35.7 ft.
It is Interesting that we towed our 23' Airstream with a Nissan Van that had 150HP/180Tq and it weighed 4,200lbs. Your 2.5 V6 Jag has a better power to weight number. The X is also based on the European Ford Mondeo format which in Europe has a 5,000lb tow rating. The X could possibly be quite a good TV.
__________________ Airstreams..... The best towing trailers on the planet!