Of course you can ask about the bumper.
The early SP10 car came without bumper, this was introduced later.
The original box is showing exactly this.
I personally don´t like the bumper anyway, looks not really good imho.
The original Corally wheels are very different from US style wheels. Rear wheels for a RC10L, Delta, Bolink or whatever 1/10 scale car are using hubs and four screws for mounting to the rear axle. This system is used for any 1/10 car until today.
Original Corally wheels are using driveplates instead of hubs. These driveplates are same diameter as ID of the rear wheels, so wheels are supported at both sides and don´t wobble.
Also there are notches used at the driveplates which lock to pegs moulded into the rear wheels. This way you don´t need any screws or tools, for changing wheels you just have to remove one plastic clip.
Overall this system runs very true and is very lightweight, but no other manufacturer went with this system. Corally wheels were very large diameter similar to early BBS style wheels made by TRC and Twinn-K. Later everybody went with smaller size wheels what was not possible with the Corally system.
first picture showing driveplate locked to rear wheel
second picture showing closed outside of wheels, note the single clip for fixing