Comment by jansper39

Putting the timing chain at the back of the engine away from the front is generally done to reduce torsional vibrations and tends to help with space claim, especially for pedestrian safety systems where you need a lot of travel space under the bonnet. But yeah, serviceability suffers.

Electric water pumps are a great idea though, instead of having an aux belt with tensioners and pulleys, you have on single part that can be unmounted and swapped out. Can run after the engine shuts off too to help cool it down.