Fixed Back vs Reclining?

[Fras]

All newer cars, regardless of the HP, have reclining seats. As long as you go with a reputable seat, I'm sure they meet all the safety standards. With old cars (I have a 68 camaro), they aren't designed with crumple zones as in the new cars to absorb the impact. A roll cage and good belts will keep your body in the car, but your body is still going to absorb a lot of the force compared to a modern car.