Kevin | 14 December 2009 | 0 commentsBritax Diplomat Convertible Car Seat for only $169.49 shipped. This Britax model usually sells for around $259.99. As someone who owns 3 of these between our two cars, Britax builds a great product. The first car seat we bought was a Chicco car seat. While we had a problem with the base on the Chicco, it to was a solid product overall, but have gone with the Britax brand since. You can use this car seat from birth until. It is extremely durable, and consistently at the top of the safety ratings for car seats. While the other 3 color choices are not discounted as of this posting, the onyx style is still at an overall discount of $199.99 if you prefer the black and gray color.