FOUNTAIN VALLEY, California — Hyundai continues to flex its muscles well in advance of the 2008 SEMA Show, revealing on Wednesday that it will show off an enhanced version of the 375-horsepower Tau V8 engine developed by its U.S. powertrain engineering team in a customized version of the 2009 Hyundai Genesis sedan by RKSport.The RKSport Genesis joins a growing roll call of customized Genesis vehicles bound for November's SEMA show, including HKS USA's 2010 Hyundai Genesis Coupe 2.0t and . Earlier, Hyundai threw down the gauntlet to customizers, giving them the opportunity to showcase its halo model at America's premier aftermarket show.The RKSport Genesis gets a composite hood, unique front and rear lower fascias, side skirts, a composite rear roof spoiler and trunk spoiler. Other touches include TSW alloy wheels, a Baer performance brake package, K&N performance air intake, Eibach lowering springs and a Magnaflow performance exhaust. The RKSport Genesis, which was designed with a minimalist Euro approach, gets a platinum paint job.Inside Line says: The real question is whether Hyundai plans to market that enhanced version of the Tau V8. It surely will be measuring crowd reaction at SEMA. — Anita Lienert, Correspondent