Started at $20 for compact and midsized worked up to and accepted for $25 for compact with Hertz. Total price with taxes and fees ($97.05) is $272.05 for 7 days.
Property is Royal Plaza on Scotts. Ranked 18 out of 255 hotels in Singapore on Tripadvisor. Works out to about 25-30% savings over other web sites, which suits me okay. I tried on Priceline but kept getting denied.