K&n 33-2473 Air Filter Panel H-1.063 In. L-10.188 In. W-6 3/8 In. on 2040-parts.com

Concept Car of the Week: Alfa Romeo BAT 7

This week sees the Concept of the Week title go to Alfa Romeo and Bertone for their collaboration on the Alfa Romeo BAT 7, the second addition to the BAT series that began in 1953 and finished in 1955. First seen at the 1954 Turin motor show, this wildly futuristic ‘dream' car came about after Alfa Romeo contacted Giuseppe "Nuccio" Bertone of the Bertone carrozeria to commission three concepts with the lowest possible drag coefficient. The cars were named BAT for "Berlinetta Aerodinamica Tecnica." Built upon the Alfa Romeo 1900 chassis, the BAT cars featured large rear bumpers and curved fins, and the concepts achieved a drag coefficient of just 0.19 - an impressive result.

Test your car's audio quality with iTunes playlist

General Motors audio engineer Matt Kirsch, who did the sound work for the Chevrolet Cruze, has developed an iTunes playlist that helps drivers test their cars' audio quality. The “10 Songs for an Audio ‘Test Drive'” playlist includes: “Don't Know Why” by Norah Jones “Diamonds and Rust” by Joan Baez “No One” by Alicia Keys “Hotel California” by the Eagles “Boom Boom Pow” by the Black Eyed Peas “Rock That Body” by the Black Eyed Peas “Hide and Seek” by Imogen Heap “He Mele No Lilo” by Mark Keali'i Ho'omalu (from Lilo & Stitch) “Bird on a Wire” by Johnny Cash “Packt Like Sardines in a Crushd Tin Box” by Radiohead While “Boom Boom Pow” and “Rock That Body” should have accurate and powerful bass beats, “No One” and “Bird on a Wire” should feature clarity in the vocals. Kirsch's playlist is available for download at http://tiny.cc/c2ach.

2011 SEMA show: Day one highlights

-- Lexus revealed the 306-hp GS 350 F Sport, which will go on sale in February. It uses a direct-injection 3.5-liter V6, paired with the same paddle-shifting six-speed automatic transmission used in the IS-F. It has four driving modes, an upgraded suspension and four-wheel steering.