Complex sentence: Alstom offers the AGV in configurations from seven to fourteen carriages; trains are constructed from units comprising three cars, each with with one transformer and two traction electronics packages located underneath the cars, and from single-car trailers.
Split into simpler sentences: Alstom offers the AGV in configurations from seven to fourteen carriages. The trains are constructed from units comprising three cars, each with with one transformer and two traction electronics packages located underneath the cars, and from single-car trailers.