The Mopar April 2004 Magazine Rock N Roll Hemi Style is a collectible magazine focused on cars and automobiles, particularly featuring content related to Mopar vehicles. With a publication year of 2004, this magazine showcases various articles and illustrations on topics such as Nascar racing, 1960s and 1990s cars, and motoring in the 1980s. Published in English and originating from the United States, this magazine appeals to car enthusiasts interested in the history and style of different eras of automobiles.