....but taking up a little less depth than Marathons? I would love a cheaper alternative to the marathons that are still RF to 35lbs and will maybe not be as hefty as the marathons. Is that a physical impossibility? My DH is 6'3"and for him to sit in the Ion, we just can't fit our Marathons RF. Since these will be second seats, it would be fabulous to find cheaper alternatives, but I am just not in the know. Thanks SO much for your experience and advice!!!