Complex sentence: Bugatti presented several concept cars between 1998 and 2000 before commencing development of its first production model, the Veyron 16.4, delivering the first Veyron to a customer in 2005.
Split into simpler sentences: Bugatti presented several concept cars between 1998 and 2000 before commencing development of its first production model, the Veyron 16.4. Bugatti delivered the first Veyron to a customer in 2005.