Irvine-based Autobytel is enhancing its mobile website for users, the firm said today, including adding a title sponsorship from auto maker Subaru. Autobytel said it has created a new mobile website "developed from the ground up" to access the firm's automotive information, find local dealers, and more. Autobytel explained that Subaru of America will be the sponsor of the site during its launch, and will be the only advertiser on the new website until September. Financial details of the sponsorship deal were not announced.