All the info is here:
http://www.direct.gov.uk/en/Motoring/DriverLicensing/CaravansTrailersCommercialVehicles/DG_4022521
Pretty hard to imagine a car + car transporter with a track car on it that is less this:
If you passed a car test on or after 1 January 1997 you're limited to vehicles up to 3.5 tonnes maximum authorised mass towing a trailer up to 750kgs, or a vehicle and trailer combination up to 3.5 tonnes MAM providing the MAM of the trailer doesn't exceed the unladen mass of the towing vehicle.
@R@tman - you spent >£300 on trailer tests?
As for trafpol - you think they cruise by looking to see if the driver looks younger than 29?
No my employer did
Test 1 Had to use father inlaws car Shogun Auto and his horse box
Because Instrutors car was brand new and didnt have the
bleeping indicators due to a fault. i failed that test didnt indicate
to go round a cyclist.
Test 2 Booked this my self using my inlaws shgun automatic and there
horse box . I Passed Whoo however becuase it was in a auto car
i could only tow with a auto even though i had a manual licence
" I DID ASK THE INSTRUCTOR THIS" he said i wont matter as you
have a manual licence How wrong he was .
Test 3 Instructor Paid for this one as he was at fault for my restricted
licence to towing with automatics . He provided the car and paid for
the test i provided the horsebox .
When we got to the test centre the examiner wouldnt take me out
as he didn't think the Astra Estate could pull the horse box so he got
vospa to come look and they said it was just legal empty so the
test went ahead and i passed and got my manual licence for towing
hard work though