Smaller capacity (6k vs vanilla 8k) since it's smaller than vanilla one. It's slower to accelerate and brake than vanilla vehicles (that's with all my vehicles) so it appears more realistic, and has rebalanced suspension, so I doesn't roll over when turning. It also uses electric vehicle effects (engine sound) hence the Green DLC requirement.

Does it have the different stats from the original postal van?

Seems inspired by the Streetscooter:
https://de.wikipedia.org/wiki/Datei:DHL-Streetscooter_2017.jpg

Very cool, thanks. Keep up the good work at giving vanilla traffic more variety!