In a trend that is sure to prove popular, Hyundai will add a less powerful and more fuel efficient four-cylinder to the available engine lineup on its Santa Fe model when it is redesigned for 2010. As of today, the four-door crossover is available with a choice of either a 2.7-liter or a 3.3-liter six-cylinder powerplant mated to four- or five-speed automatics (a five-speed manual is optional on the smaller engine). Both are rated at 24 mpg highway in the current model. The next-gen Santa Fe will offer a new six-speed automatic with the 2.4-liter four-cylinder that is currently powering the 2009 Hyundai Sonata. Under the hood of the lighter Sonata sedan (and mated to a five-speed automatic), the second-generation Theta engine squeezes out 32 mpg on the highway. While we don't think the Santa Fe will pull a number that impressive, fuel economy in the high-20's shouldn't be out of the question.