Complex sentence: Richard Petty Motorsports (RPM) is a two-car NASCAR Sprint Cup Series race team owned by seven-time NASCAR champion Richard Petty and New York businessman Andrew M. Murstein.
Split into simpler sentences: Richard Petty Motorsports (RPM) is an American professional stock car racing team that currently competes in the NASCAR Sprint Cup Series. The team is owned by seven-time NASCAR champion Richard Petty and New York businessman Andrew M. Murstein.