Britax Car Seats – up to $70 off !! This post may contain affiliate links. Please see the full disclosure policy here. Posted on July 29, 2010 Written by Mary 1 Comment Amazon is running a huge Britax Car Seat Clearance! You can save up to $70 right now and score FREE Shipping! The seat above is just $152! I love our Britax and am seriously thinking about picking up another one for my husbands truck.