Um, so I don't even know how I stumbled upon this (AND I thought it was fake because I was under the impression Britax only does the Free Ride event once a year, back in June?), but Amazon is running a Free Ride event RIGHT NOW! No details on the website when it ends, but buy a B-Ready and get a B-Safe car seat, lower second seat, or bassinet for free.
Buy a Britax B-Ready Stroller, Get a B-Safe Infant Car Seat, Bassinet, or Second Seat Free
"For a limited time, buy a Britax B-Ready Stroller and get an infant car seat, bassinet, or second seat for free. Simply add both items to your cart and the discount will be applied at checkout. Applies only to products sold by Amazon.com. Does not apply to products sold by third-party merchants and other sellers through the Amazon.com site."
B-Readys are $374.99 right now. Happy shopping!