@@alyssabrooke7168 For rear-facing, it's use is for anti-rebound, so it is placed tight against the vehicle seat back. The Rava will give your child a little bit more leg room when RF, but the EXEC does have the booster capability.
Hi. No. The Exec is too wide to fit 3-across in the M3. The closest I’ve come to doing a 3-across is with the Graco SlimFit 3 LX/True3Fit LX (must have 3 in the name). The Britax Poplar is very narrow as well, but won’t work as a forward-facing seat due to the vehicle head restraint.
You didn't say what configuration they need to be in, but 3 Execs facing all the same direction in the MY will be very tight. Do-able, yes, though the side impact pods at the top of the carseat may be damaged by being squished together.
You know . . . If you’re open to the Britax Poplar/Poplar S, that would easily work. It’s narrower than the Exec and will work with the MY head restraints because you can remove them on the sides if you ever place them there (if you use one in combo with the Exec, for example). Here’s a link: amzn.to/49ugZls . (This is an affiliate link).