There are a ton of ways to badly injure your kids by being irresponsible in any car. This doesn't really add anything new there, and the fact that they're rear-facing and permanently installed in the car should make them a fair bit safer than typical add-on child seats.
Any car that's safe for the road can already maneuver hard enough to injure unsecured passengers in at least three directions. The rear seats and high acceleration add one more direction, but also largely subtract the opposing direction, so it's a wash. You have to accommodate your passengers with how you drive in any car.
Shouldn't it be safer to be seated backwards in most situations? I doubt that children will be injured by accelerating, but in most crashes backward seating should be of advantage
Could not verify this. Looks like it seats 5, 2 in the front and 3 in the back. What am I missing?