Complex sentence: His vehicle, some sort of space-faring motorcycle (the "Space Hog"), often accompanies him as it is his own design, and, despite its size, it is capable of extended and speedy travel throughout space.
Split into simpler sentences: His vehicle, some sort of space-faring motorcycle (the "Space Hog"), often accompanies him. It is his own design and, despite its size, it is capable of extended and speedy travel throughout space.