Complex sentence: He drew up plans for a new model, the Commuter, a one-piece fiberglass car that resembled a dune buggy, but a fire at his newly-built Florida plant destroyed the only body mold.
Split into simpler sentences: He drew up plans for a new model, the Commuter, a one-piece fiberglass car that looked a lot like a dune buggy. Unfortunately, a fire at his newly-built Florida plant destroyed the only body mold.