In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Passage: RPAC Racing, LLC, dba Richard Petty Motorsports (RPM) is an American professional stock car racing team that currently competes in the Monster Energy NASCAR Cup Series. The team is owned by seven-time NASCAR champion Richard Petty and New York businessman Andrew M. Murstein. The team was founded as Evernham Motorsports in 2000 by former crew chief Ray Evernham, entering full-time competition as a two-car operation in 2001 and fielding additional full-time entries in alliances with Ultra Motorsports and the Valvoline corporation. The organization was renamed Gillett Evernham Motorsports in 2007 after former Montreal Canadiens and Liverpool F.C. owner George Gillett bought a controlling interest from founder Evernham, and took on its current name after merging with Petty's team Petty Enterprises in 2009. Known for its factory backing from Dodge since its inception, the team switched to Ford in late 2009 and merged with Yates Racing for 2010. The team has the odd distinction of being the result of three successful teams (Evernham, Petty, & Yates) merging after falling on hard times.
Link Information: In 2019, NASCAR rejected Monster Energy's offer to extend the current naming rights deal beyond the end of the season. NASCAR subsequently announced it will be moving to a new tiered sponsorship model for the 2020 season similar to other U.S. based professional sports leagues and will simply be named the NASCAR Cup Series Question: Who is the sponsor of the series that RPM currently compete in?
Answer: none