48 Volt Alternator

G. Chambers Williams III: Hyundai Sonata enters the hybrid race

Just in time for the latest round of high gasoline prices (although they are dropping somewhat at the moment), the gasoline-electric hybrid version of the redesigned Hyundai Sonata sedan has arrived.

The car is EPA rated at 35 mpg city/40 highway, which isn't quite as high as the fuel economy of the best-selling hybrid, the Toyota Prius, officially 51 city/48 highway.

But also unlike the Prius, the Sonata hybrid has an almost identical gasoline-only version, which arrived last spring as an early 2011 model. This is a regular-looking car, not a vehicle that screams “hybrid” as it rolls down the road.

Prices of the Sonata and Prius hybrids are similar when configured the same. There is just one trim level for the Sonata, and the base price is $25,795 (plus $750 freight). Options can run the price into the low $30,000s, but those extras aren't necessary to have a really nice hybrid sedan with ample room for five passengers and their luggage.

That price is nearly $800 less than the base price of the Sonata's closest Japanese competitor, the Toyota Camry hybrid sedan, which starts at $27,050 (plus $760 freight). But the Sonata is more than $2,800 less than the Ford Fusion hybrid sedan, which begins at $28,600 (plus $795 freight), also a direct competitor both in size and configuration.

Equipped with Hyundai's own Direct Hybrid Blue Drive system, the Sonata has a four-cylinder gasoline engine combined with an electric motor. Its fuel economy easily beats the Camry's 31 city/35 highway ratings, but the Fusion has an edge with its 41 city/36 highway mileage estimates.

The Sonata's drive system was developed in-house by Hyundai and includes several technical firsts, the South Korean automaker said, allowing it to offer some features not available on its competitors. For instance, the Sonata can go up to 62 mph on electric power alone; the competitors are limited to about 25 mph. Range on electric power alone is limited to a mile or so, however, as it is in most of the competition.

For the Sonata's hybrid system, Hyundai uses a 1.4-kilowatt-hour lithium-polymer battery pack that weighs only 95.9 pounds, versus 123.9 pounds for the Camry Hybrid's nickel-metal-hydride battery. Even with the lighter weight, the Sonata's battery is 10 percent more efficient than the Camry's, Hyundai says.

A question most potential hybrid customers ask about is battery life, and Hyundai says the Sonata's battery pack shouldn't have to be replaced during the 10-year life of the car.

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