Complex sentence: The secondary advantage is that it houses all important parts of the drive train as well as it enables a concept of modular construction where designers and customers can specify 4,6, wheel drive and various length wheelbase combinations.
Split into simpler sentences: The secondary advantage is that it houses all important parts of the drive train. In addition, it enables a concept of modular construction where designers and customers can specify 4,6, wheel drive and various length and wheelbase combinations.