Here's one to beat: a complete week on the Emerald Isle, visiting four different cities in your own rental car, and airfare from the US for just $899.
Sceptre Tours and its for travel this fall, from October through November. Those who wish to travel in balmy September pay just $99 more for the privilege, still a steal. The promo includes nice hotels in Dublin, Cork, Limerick and Kilkenny. The car's a manual, but that can be changed to automatic for a bit of extra cash. The departure gateway (NY) can also be changed, for some extra change (to Boston for $25 more, Chicago for an extra $50). Sceptre can also offer sightseeing packages and extra nights; ask.
For complete details, click on the link above. This offer must be purchased by June 29.