New Logo needed for a new-car website

Newcarsavings.ie (tagline = "New Cars - Huge Savings")

We are an internet company that sells new cars at discount prices throughout the country, effectively attempting to beat franchised dealers on price mostly, but also on service, and by supplying models not sold here, or before they have been launched.

Anyone who buys new cars. Typically these customers are in the age group 30-60, with a strong male bias. They are usually affluent and internet-savvy. They will find our site through google adwords, while using the net for either product information or price comparison.

I am looking for a clean modern logo. It must be reasonably colourful without going overboard (any colours considered at this stage). Most importantly it must inspire confidence in the target market, such that they believe they have landed on the site of a professional and and trustworthy organisation. I am fairly open to any ideas at this point, and will comment quickly on new designs submitted to drive the contest in the right direction