Hi Fuzz, there are some gaps in your information, but yes I think you are right, your girfriend can drive a laden or unladen trailer with 'L’ plates to the front and back of the vehicle and trailer as long as you are in the passenger seat, because you passed your test before 1997.
Westyfield2, again really you need to look at the detail/specs of your vehicle and trailer but actually I think you actually could tow the combination you described.
It is illegal for a holder of a category B license to tow a trailer if the towing vehicle and trailer empty or loaded exceeds 3.5 ton MAM maximum autherised mass but what you described doesn't. Copied from the .gov site, "If you passed your driving test after 1 January 1997 and have an ordinary category B (car) licence, you can drive a trailer over 750kg MAM as long as it is no more than the unladen or ‘kerb’ weight of the towing vehicle (with a combined weight of up to 3,500kg in total)"
Hope this helps.
Westyfield2, again really you need to look at the detail/specs of your vehicle and trailer but actually I think you actually could tow the combination you described.
It is illegal for a holder of a category B license to tow a trailer if the towing vehicle and trailer empty or loaded exceeds 3.5 ton MAM maximum autherised mass but what you described doesn't. Copied from the .gov site, "If you passed your driving test after 1 January 1997 and have an ordinary category B (car) licence, you can drive a trailer over 750kg MAM as long as it is no more than the unladen or ‘kerb’ weight of the towing vehicle (with a combined weight of up to 3,500kg in total)"
Hope this helps.