One more detailed note - you guys are using retargeting without a frequency cap. I went to your site from a link on HN and have seen tons of ads for you guys on

One more detailed note - you guys are using retargeting without a frequency cap. I went to your site from a link on HN and have seen tons of ads for you guys on doubleclick even though I am not in the market for a car. Adding a frequency cap on that will help out big time on your CTR and return on those campaigns.