Yes....I too have been thinking a lot about another residence , or the hire car .
How about he was renting a room , and not a whole flat ? That would probably be a lot cheaper , especially a box room , to be used when needed .
Regarding the hire car , there could be legit reasons as well .....for example , I had to get my windscreen changed due to it having cracked after being hit by debris on the lovely roadworked M4 . Car couldn't be driven for 36-48 hours afterwards .
So it follows that you kinda need another vehicle to get to work and back .
But I struggled with this theory myself, as the accused had 2 other cars removed from his address AND a motorbike (granted not the best time/weather of the year for such a commute but still....).