Abstract: An electric vehicle engine arrangement (10) for a retro-fitting to a vehicle which has engine mounts suitable for mounting an internal combustion engine. The arrangement (10) includes a mounting member (11) for mounting an electric motor (12) in the engine bay of the vehicle. The mounting member (11) is anchored to the existing engine mounts of the vehicle and the electric motor (12) is mounted to the mounting member (11).

Abstract: A battery management system for monitoring a plurality of battery cells, including a plurality of electronic boards, each of the electronic boards being mounted on a respective one of the battery cells, wherein the electronic boards are connected in series to a central processor by a twisted wire pair, the twisted wire pair being connected to each electronic board by a coupling, wherein the coupling is open during normal use and is closed to connect the wires of the twisted wire pair in response to sensing a predetermined event in relation to the respective battery cell such that the central processor is able to determine from a level of voltage returned through the twisted wire pair the number of battery cells at which the predetermined event has been sensed.