In the same way, a Panda is a ton. Generally speaking, the lightest you're every going to find in cars is 800kg. I drove a Clio 1 Phase 1, that was 820kg. And let's be honest, it wasn't much more than an engine, seats, and a body. Even a Twizy, which is absolutely nothing is in the 475kg range. Engines are heavy.

But yes, you are closer to a car. if it's truly 500kg.