I've been searching for a Saturn SC2 for about a month now, and I have had a couple deals that started off good and then they didn't work. So I registered a new account and entered a promo code, so I'll be spending at least $50 on these ads. Search google for "saturn sc2" and you'll see my ad (but don't click it please). It's the one that says "I want a SaturnSC2". It takes you to this page - http://www.fpsgaming.us/saturn and then hopefully people will start emailing me. I hope this works...
Make sure you're targetting people who want to sell a SaturnSC2, not anyone looking to buy, or just find out about them ie. have keywords like sell saturn, list saturn etc, and have negative keywords like -buy. Having your ad show up for people who search "saturn sc2" is too general, you need to be more specific or you're wasting money on adwords. Neil
Even if it's money you can throw away, you might as well throw it away on the right target audience for your ad. The number of people searching for saturn sc2 who actually have one to sell is a pretty small proportion of the total searches, so you might not get a great response unless you're zeroing in on people who can actually sell you a car.