[fusionrx]

I use a Regent. Plan to keep him in till he hits weight limit. Oh yeah, he hasn't yet turned 4... Expensive but definately worth it...

	Britax Regent - Click for more info The Britax Regent is the safe way to carry your older and larger passengers, all the way up to 80 lbs. Known as the "king of all car seats," the Britax Regent will accomodate your little king or queen for far longer than traditional car seats or booster seats. The Regent features a large roto-molded shell, comfy extra-thick comfort foam, washable covers, Patented Versa-Tether™, flexible buckle LATCH system, patented HUGS™ system, and tangle-free polyester 5-point harness.