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Average new-car fuel economy figures continue record pace

Manufacturers are making more efficient cars and trucks; we've known that to be true for some time. Nearly every new car has some sort of trick to eke a few extra miles out of every gallon of fuel. Whether that be turbocharging, active aerodynamics or hybrid technology/electrified powertrains, the fact is that our vehicles are more efficient than ever before.
Thanks to a recent study by TrueCar, we've got fresh quantitative data to support the above statements. For the fourth month in a row, we've seen an improvement in national fleet fuel economy. We Americans are 0.7 miles per gallon more efficient than we were last month, and our cars are 1.6-mpg better than at this time last year. That said, we're still down on 2013's high, which was set back in January at 24.5 mpg.
Not only does this reflect the improved technologies in our vehicles, but it demonstrates a changing mindset among consumers, who are purchasing more efficient vehicles despite the relative stabilization of fuel prices. Every fuel-efficient model sold drives its manufacturers fleet average up.

Honda CR-Z gets much-needed supercharger

Honda has really taken its time in getting an aftermarket supercharger kit for the CR-Z to enthusiasts in the US. It's finally on sale, though, and it makes you wonder if the hybrid hatchback shouldn't have had it from the day it went on sale.
The supercharger kit developed by Honda Performance Development boosts output from the CR-Z's 1.5-liter, four-cylinder engine to 197 horsepower and 176 pound-feet of torque, according to Honda spokesperson Jessica Howell, an improvement of 67 hp and 36 lb-ft. It also adds an air-to-air intercooler, high-flow fuel injectors, a recalibrated ECU and new air filter for $5,495, before installation. However, the setup only works for six-speed manual transmission models from the 2013 and 2014 model years. If you want to take things even further, HPD is also offering an optional limited slip differential for $1,375 and sport clutch for $640, according to Howell.
Development of the supercharger kit has been ongoing for years. We first saw it on the CR-Z Mugen RZ in 2012 in Japan, in which it barely bumped power to 153 hp. Later at SEMA, Honda improved things to a more respectable 185 hp. Then in 2013, we actually got to drive an early version boasting 190 hp and found it a solid improvement over the stock powertrain. It appears Honda had some further tweaks to get things to the current 197 ponies. More good news: assuming you get the package installed at a dealer, the car maintains the balance of its 5 year/ 60,000 mile Honda limited powertrain warranty.

Acura NSX GT3 non-hybrid racecar on sale soon

Just over a year ago, Acura debuted the NSX GT3, the FIA GT3-spec racecar based on the automaker's latest and greatest. While it took years for the road car to hit the streets, the NSX GT3 was developed in a relatively short amount of time. This year, the car competed in several races under the factory banner, racking up 50,000 miles and two race victories. Today, Honda and Acura announced the NSX GT3 will go on sale for private teams. Think of the NSX GT3 as a stripped out version of the standard NSX sans hybrid system. The 3.5-liter twin-turbo remains, but, since there are no electric motors up front, all the power is sent to the rear wheels through a XTRAC semi-automatic 6-speed sequential transmission. The chassis is built in Ohio right alongside the regular NSX. The same goes for the engines. The block, heads, valve train, crankshaft, pistons, and dry-sump lubrication system are the same specification as the production car. Final assembly is completed in Italy. This past year, the NSX GT3 competed under the Acura banner in the WeatherTech SportsCar Championship GTD class and the Pirelli World Challenge GT category. In addition to those series, the car is built to compete in the Blancpain GT Series and 24 Hours Nurburgring in Europe, the Super GT GT300 class in Japan, as well as other GT3-spec race series. Different divisions of Honda will be handling global sales, with HPD responsible for the North American market. US pricing hasn't been announced, but converting the European models start at about $545,000. Now we just want to see a lightened, non-hybrid version of the NSX on the street. Related Video: Featured Gallery Acura NSX GT3 View 11 Photos Image Credit: Honda Motorsports Acura Honda Coupe Racing Vehicles Performance honda nsx acura nsx gt3