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Acura, the luxury car division of Honda, took the wraps off its second-generation autonomous vehicle, a test sedan called the RLX Sport Hybrid SH-AWD. The unveiling kicks of the company's plans to introduce self-driving vehicle functionality by 2020.

Developed by the Honda Research Institute USA (HRI-US), the RLX features a new suite of radar, Lidar (a surveying technology that measures distance by illuminating a target with a laser light), a camera, and GPS sensors.

The sedan also features upgraded CPUs and GPUs, as well as improved cabling, heat management, and circuitry.

As part of the May 18 announcement, the company disclosed that it would begin testing and honing its autonomous driving systems at the GoMentum Station -- a 5,000-acre testing ground for connected and autonomous vehicles at the former Concord Naval Weapons Station in Concord, Calif.

GoMentum Station contains 20 miles of paved, citylike roadway grids, buildings, and other urban infrastructure.

Using a concept called sensor fusion, where the vehicle fuses overlapping information together from various sensors, test engineers can validate information from each signal with a higher degree of accuracy than could be obtained from any one sensor independently.

The test vehicle comes equipped with radar sensors and other technology Acura has already applied to its commercially available cars through its AcuraWatch safety and driver-assistive suite.

The suite includes a lane-keeping assist system, road-departure mitigation, adaptive cruise control, and a collision-mitigation braking system with a pedestrian-sensing capability.

Acura faces some stiff competition in the race to bring autonomous vehicles to public roads. Google has had test vehicles on the road in California and Austin for more than a year now, and may soon start tests in London.

[Read about Apple's China investment and whether it's a prelude to Project Titan.]

Recently, Google announced that it is looking for candidates in and around Phoenix to test its self-driving cars. These people will be responsible for operating a driverless vehicle for six to eight hours per day, five days a week.

Meanwhile, fellow Japanese automaker Nissan has already begun testing its first prototype vehicle that demonstrates piloted drive both on highways and city roads.

In addition to the race to the production line, there's also been some serious jockeying for talent. The high-stakes race to develop mass-market electric vehicles and the technology behind self-driving vehicles, has spurred a fierce battle for top minds at Apple, Google, Ford, and Tesla Motors.

As part of a series of events marking BMW's 100th birthday, CEO Harald Krueger announced plans to release an electric self-driving car in 2021 called the i NEXT that will serve as the company's flagship model.

BMW has been making strides towards autonomous vehicles during the past decade. In 2006, a company test vehicle autonomously completed a lap of the Hockenheimring racetrack, and in 2011 a BMW drove on the A9 autobahn from Munich towards Nuremberg without any driver intervention.