Yep, sometimes the situation in Singapore isn't quite so different from other parts of the world - on occasion you can see the odd supercar owner hogging two parking spaces instead of one. But while this person can't speak for everyone who does it, it does give a little insight into why they do it:

DEAR TRS, I WISH TO EXPLAIN WHY EXPENSIVE CAR DRIVERS TAKE UP 2 PARKING LOTS

(not that that makes other people any happier about it, judging by the comments)