Complex sentence: The consumer version of the DuraStar is manufactured by Midwest Automotive Designs, which is a manufacturer based in Elkhart in Indiana that produces conversions of class 5 and 6 commercial trucks conversions as luxury consumer vehicles.
Split into simpler sentences: The consumer version of the DuraStar is manufactured by Midwest Automotive Designs. Which is is a manufacturer based in Elkhart in Indiana that produces conversions of class 5 and 6 commercial trucks conversions as luxury consumer vehicles.