it can only be a weak spot on specific motors, Auto boxes are fitted to most new heavy vehicles now due to the way they're built, there can be over 100 times more friction surface area to allow more power to be transfered to the drive so not all auto boxes are 'weaker' its down to the individual motor.
------------- Doing as little as possible for as much as possible...
I was a dyed in the wool manual bigot. until I got an auto, there is no way I would go back to a manual. Where an auto comes into its own is in heavy traffic, no aches and cramps in the left leg
kia sedona 2.9 is a brilliant tow car.i have a twin sprite quattro 6berth didnt even feel like i was towing anything.but i have changed to an auto now due to left hand injury,i now have a nissan elgrand import 3.1 diesal,and its even better.so its really down to personal choice.
Type Manual or automatic into the search box above select caravans and towing
click on 2 years.
you will find app 4,500 views on this subject.
75% of replies in favor of Automatic.
Mondeo 2.0 tdci manual max tow 1800kg, Powershift (semi auto) max tow 2000kg. On the Kias & Hyundais when the tow weight is reduced, sometimes so is the max nose weight.