Complex sentence: Based on a Plaza Club Sedan, the "Silver Special" had a custom paint job with silver paint on the roof and in the Sportone inserts plus a short stainless steel spear that accented the front fenders and extended partially into the front doors.
Split into simpler sentences: Based on a Plaza Club Sedan, the "Silver Special" had a custom paint job that consisted of silver paint on the roof and in the Sportone inserts. Added to that was a short stainless steel spear that accented the front fenders and extended partially into the front doors.