Engineers have tried and failed for decades to build motorcycles with automatic transmissions. Honda finally gets it right with the new DN-01 "sports cruiser" bike. Conventional automatic transmissions, like those in cars, lag when you hit the throttle and can throw a bike off balance during turns. Honda's HFT (for Human Friendly Transmission) responds to the throttle instantly by using hydraulic pumps instead of standard gears.

For more on the Civic GX's natural-gas powertrain and the innovative home-fueling station that keeps it going at a fraction of the cost of gasoline, launch the slideshow.

Behold the car that could displace the Toyota Prius as the eco-ride of choice. The new natural-gas-powered Honda Civic GX uses domestically produced fuel–the same stuff your gas stove burns–that costs as little as one third the price of gasoline. The American Council for an Energy-Efficient Economy calls it the cleanest-burning internal-combustion vehicle on Earth.

For a closer look at the Honda FCX, click 'View Photo Gallery.' And for a rare Q&A with Honda's president and CEO, continue reading on the second page.

For a video lap around Laguna Seca, scroll to the bottom of the page (and turn up your volume).

It's not KITT, but it's close: The Honda Accord ADAS, written up in the May issue of PopSci, can sense its proximity to other cars and objects and steer itself to stay within lane lines. And you thought cruise control was cool.

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Small streets and pricey fuel have shaped the European car market to favor smaller cars. In fact, what we call a compact car is a midsize on the continent. But now that Ameri- cans are feeling the burn of expensive gas, automakers have responded by bringing a fleet of smaller-than-subcompact vehicles to our shores. Unlike previous stripped-down econoboxes, these will be equipped to appeal to both the budget-minded and the car-savvy consumer.

From the Jetsons' Rosie to Richie Rich's Irona to Robby of Forbidden Planet, we've been promised digital domestics that look and act a lot like . . . a maid. But that isn't going to happen anytime soon, robot experts say. The problem? Today's machines are a long way from having the anthropomorphic qualities-above all, sight-found in human help.

Car engines have been governed by computers for years, but Honda’s iGX440 (honda.com) is the first power-equipment engine with a microchip. The electronically regulated iGX440–which will show up in lawn mowers, water pumps and pressure washers later this year–runs at a constant engine speed even under changing loads. Thick grass usually causes mower engines to slow, bogging down whomever's pushing the machine, but the iGX440 maintains speed, and thus power, by giving the engine more gas and manipulating ignition timing.