Complex sentence: The Maverick/Comet has not reached the popularity of the Mustang among muscle cars, and is still overlooked by most classic car enthusiasts, although recent auctions are showing a rising market value for the Maverick/Comet.
Split into simpler sentences: The Maverick/Comet has not reached the popularity of the Mustang among muscle cars, and is still overlooked by most classic car enthusiasts. Although recent auctions are showing a rising market value for the Maverick/Comet.