The 2007 Sylvania 300 was the 27th race of the 2007 NASCAR Nextel Cup season and the first of the ten-race 2007 Chase for the Nextel Cup championship series. This racing event was run on Sunday, September 16, 2007, at New Hampshire International Speedway in Loudon, New Hampshire, and was the twelfth race to use the Car of Tomorrow template that would be used full-time starting in 2008.