It's the latest in consumer services in Singapore, called Tease and Wash:

Allow yourselves to be "teased and titilated" while your vehicle gets a good rub down.

Basically, you sit in your car while girls clean it, eventually ending up in nothing but bikini bottoms and heels (the girls, not the car).

It's caused a bit of a stink. Apparently a 19 year old girl from China participated, and her school recognized her in the online promotion, and expelled her just short of graduation. For reasons I can't imagine, this story has attracted a lot of attention, being reported as far away as India.

Honestly, I was just trying to get my car washed.

[Update] More details here, including, *cough* images. But they're censored, so there are no naughty bits in sight, you perverts. I have to say that the blog owner doesn't seem to respect his vehicle, with a comment like this:

They wash car Clean anot?? DOES IT REALLY MATTERS?!!! DOES IT??!!!! KAKAKA!!!!