If you are into this kind of machines, there is a nice auction sale in a few days: https://www.classicdriver.com/en/auction/dorotheum-sammlung-rrr-roller-roller

If you are into this kind of machines, there is a nice auction sale in a few days: https://www.classicdriver.com/en/auction/dorotheum-sammlung-rrr-roller-rollermobile-raritaten-10-july-2020 https://www.classicdriver.com/en/auction/dorotheum-sammlung-... => most of those cars are really surprising, even though I've already seen some in real life at car events, it's engineering optimised and minimised!