"The original Mp3 came in two variants - the Mp3 and the Mp3 LT. The LT version had a slightly wider track and a parking brake, which made it legally a tricycle that could be ridden whilst holding a car licence (the standard Mp3 had a narrower track, no parking brake, and required a suitable motorcycle licence).
The later Mp3 Yourban only comes in the wide-track configuration, so that all models are legally rideable with a car licence.
That changed with the introduction of the new licencing categories in Jan which mean that people obtaining a full driving licence after the cut-off date are not permitted to ride a tricycle and to do so will have to complete a CBT and obtain an A-category motorcycle licence (or A2 if age-appropriate)"
It depends which one you are talking about;
"The original Mp3 came in two variants - the Mp3 and the Mp3 LT. The LT version had a slightly wider track and a parking brake, which made it legally a tricycle that could be ridden whilst holding a car licence (the standard Mp3 had a narrower track, no parking brake, and required a suitable motorcycle licence).
The later Mp3 Yourban only comes in the wide-track configuration, so that all models are legally rideable with a car licence.
That changed with the introduction of the new licencing categories in Jan which mean that people obtaining a full driving licence after the cut-off date are not permitted to ride a tricycle and to do so will have to complete a CBT and obtain an A-category motorcycle licence (or A2 if age-appropriate)"