Infiniti G35 Coupe Rebuildable Repairable Salvage Runs Lawaway Plan Karsales.com on 2040-cars

Auto blog

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.

Genesis G70 vs sport sedan rivals: How it compares on paper

We got our first look at the Genesis G70 sport sedan today. We think it looks good, with enough ties to its fellow Genesises (Geneses?) to further establish the brand and just enough distinction to help it stand out from the crowd. But ah yes, the crowd. Although Genesis didn't release the G70's full spec sheet, it revealed just enough for us to start sizing it up to its future competition. There are certainly others with which to compare (Lexus IS, Cadillac ATS, Alfa Romeo Giulia, Jaguar XE just to name a few), but we decided to take a look at the best sellers and most competitive luxury sport sedans. (And hey, if you like this, we can always do a follow up) So, here we have the Genesis G70 vs BMW 3 Series vs Audi A4 / S4 vs Mercedes-Benz C-Class vs Infiniti Q50. Nothing like a good chart to dig your teeth into on a Friday. Note that we only compared those models that line up with the G70. So, we left out the BMW 320i and Audi A4 Ultra entry level models as well as the Q50 3.0t mid-grade model that's considerably cheaper than the German performance upgrade models we listed. All 0-60 figures are rough estimates based on several sources, models/drivetrains and OEM figures. Related Video: Featured Gallery Genesis G70 vs other sport sedans View 15 Photos Audi BMW Genesis Infiniti Mercedes-Benz Luxury Sedan consumer infiniti q50 audi s4 genesis g70 mercedes-benz c-class bmw 330i bmw 340i

Infiniti teases QX Monograph concept for Pebble reveal

Infiniti is planning on showing a new concept car during Monterey Car Week called the QX Monograph. In case you lost track of time, that’s next week, as the concept car will officially be unveiled on Thursday, August 17. Infiniti is planning on holding a press conference at The Lodge at Pebble Beach where Alfonso Albaisa, senior VP of design, will present the vehicle. Infiniti says the new concept will showcase the “future direction of InfinitiÂ’s design direction.” A single teaser image gives us a glimpse of the grille and the Infiniti logo on the front. There isnÂ’t a lot Infiniti is saying about the QX Monograph yet, but weÂ’re told it features “digital piano key” lighting, bold proportions and the aforementioned double-arched grille. Of course, since itÂ’s a QX model, we should also expect it to be an SUV concept and not any other body style. Beyond the concept car, Infiniti says itÂ’s bringing never-before-seen quarter-scale design models from Nissan archives to display publicly. In total, four of these models will be shown, including the 1916 DAT 41, 1966 Prince Skyline 2000-GTB, 1970 Nissan Skyline H/T and the 1995 Nissan Skyline GT-R. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.