Both have crazy high prices compared to the US. HK has really high taxes and license fees which make the car cost more than twice the US. Not sure about Singapore but I imagine it must be similar. The singapore governemt may have even higher taxes though, not sure.
I think I'd rather live in HK though, personally.
Edit: asking my friends, they say Singapore is likely the more expensive one. Can't tell you by how much though
2005 Magnetic Blue Lotus Exige
Drivetrain: Honda K20A Type R | Innovative Kit | Arqray Ti | SCM Intake/Header | Hondata | proRAD | Setrab | KTuned | V2 Fuel Tank | BOE Swirl
Aero: Exige Clams | Reverie | TWRD GT | Craftsquare | IMRP | BSK | Voltex
Suspension: Penske SA | V2arms | RTDbrace | CE28N | R888 | BOE Floating | Pagid RS14
Interior: Recaro SPG | Willans | WorksBell | Sparco