I'm thinking about going to Portugal in my VW Caddy, with 4x4 on a lorry behind it. But I've heard from a man I rented a lorry one day that in Germany I can tow only up to 750 kgs of braked weight. Does anybody know that it's true? The lorry and 4x4 is about 1200 kgs, and I can tow it legally in Poland. But what about other countries on the way to Portugal?