As others have said, it doesn't use the Lima pancake motor - Hornby haven't reused that on any of their re-released Lima models but all of those have new 5 pole motors which are often referred to as the Limby motor bogie. The problem with the 4VEP and this motor bogie seems to be there is insufficent weight applied over it, which coupled with the drag of the inside bearing bogies in a 4 car unit meant that they could be a bit gutless. Some improvement in performance could be got by a rearrangement of the traction tyres, and the second batch seemed to perform better based upon comments hereabouts. However, the same motor boigie was used in the 5BEL without traction tyres but with a substantial metal housing over it and performance is reported to be good. I'd suspect that that regime was continued onto the 2BIL.