I mean, I'm sure European truckers would love a full kitchen, a shower and a double bed if they could get it. But the length limits would still be a problem and it would be hard enough to stay competitive without having to refuse the standard length trailers.
You're not going to see a full kitchen and shower in a standard sleeper cab. You'll get one or two beds, maybe a dinette, a microwave, and a fridge. To get the kitchen and shower, you're going to have to go custom. Going custom, you're only limited by money, space, and regulations.
