* Trucks are slower than personal cars. * Pauses are required. * Some roads cannot be used by some vehicles and/or cargo, especially in the Alps. Same with tu

* Trucks are slower than personal cars. * Pauses are required. * Some roads cannot be used by some vehicles and/or cargo, especially in the Alps. Same with tunnels. * Some countries ban trucks from their roads on certain days and hours, so a day off whether you want it or no. * Sometimes your employer tells you to avoid some extra expensive road even at the cost of longer driving time. (Europe has a myriad of toll systems.) * The cargo for the return journey is usually not ready on the same day, might well take five.