2006 Jeep Commander Limited Sport Utility 4-door 5.7l on 2040-cars

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FCA's Pentastar V6 gets more power, efficiency for 2016

Already a vital member of FCA's powertrain lineup, the 3.6-liter Pentastar V6 is receiving major efficiency improvements for 2016. Thanks to a massive amount of new tech attached to the mill, fuel economy is up six percent, and torque below 3,000 rpm jumps nearly 15 percent. The updates arrive first in the 2016 Jeep Grand Cherokee, but they should proliferate to other models eventually. At least in the Grand Cherokee, the tweaks push power up five horsepower to 295 ponies. FCA's engineers went through the Pentastar from top to bottom to eke out as much efficiency as possible. For example, there's now a two-speed variable-valve lift system that can run in low- or high-lift modes. This upgrade is responsible for 2.7-percent better economy, the company claims. A new intake manifold with longer runners and updated variable-valve times also helps boost the torque output. Further improvements come from pushing the compression ratio to 11.3:1, from 10.2:1 before. Perhaps most impressive is that despite all of the innovations, the latest Pentastar actually weighs four pounds less than the current version. Beyond the Pentastar improvements, all of the FCA US gasoline engines, except for the Viper's 8.4-liter V10, will be E15-compatible for 2016. The company says that it wants to be ready for the higher ethanol content fuel's greater use in the near future.

Top horsepower-per-dollar cars in 2017

Bang for the buck. That quasi-scientific statistic is bandied about by motor heads everywhere from classrooms to barrooms, though the truth of the matter is that it's exceedingly complex to measure. A fair performance-per-dollar index would include something like cross-referencing MSRP (Manufacturers Suggested Retail Price) with point-to-point times on a track or driving route, which is obviously hard to do comprehensively. But, for the sheer joy of talking about cars and playing with a big spreadsheet, there's always the horsepower-per-dollar index, which is more straightforward, albeit hilariously flawed. There are vagaries even with this simple formula, of course: MSRP for vehicles can change at a moment's notice, to say nothing of the bottom-line shifting that happens with local deals or showroom negotiation. For this list we're running with the straight MSRP wherever possible, and as recently reported as we can get it. All the vehicles on this list are 2017 models, and all trims are reported where the lowest price and differing power levels intersect. Some choices were made for personal preference and some for sanity, avoiding things like all 48 trim levels of the Ford Transit, all with the same horsepower). If this list were a simple top ten, or even a top fifty, you'd be bored to tears with all the red, white and blue that is represented. Following perfectly with conventional wisdom, American cars really do lead the world where hp/$ is concerned. So, for the sake of variety (and the sheer joy of seeing a minivan 'win' one round of this thing) I've sorted out some top five and bottom five lists for broad power categories. Let's dive in. Less Than 100 Horsepower Okay, okay, this is hardly a category we'll grant you. But we've often tried to click off all the sub-100-hp cars on sale in the US, and making this list gave us an excuse. It also illustrates that none of these smallish vehicles bring cheap horsepower to the table - for that you'll need a motorcycle. The segment-leading Chevy Spark (above) asks just over $139 for each hp, and that Smart Fortwo Electric Drive has hp on sale for about the same price as its very distant family cousin, the Mercedes-Benz SL65 AMG (insert your favorite Smart joke here... we know you want to).

12 new cars that will never go out of style

Some cars never go out of style. It’s rare, but it happens. They get old. They get depreciated. But they never stop looking cool.  Some might call them modern or instant classics. Within a few years theyÂ’re no longer the latest and greatest, no longer the flavor of the month, but they remain special. Eternally special. Timeless.  These cars arenÂ’t necessarily going to be worth a fortune someday. However, some may not depreciate as rapidly or as far as other models. But thatÂ’s not what weÂ’re talking about here. These are the cars that enthusiasts will always find desirable from the curbside. TheyÂ’re the cars you end up shopping on eBay late at night 10 years later because you canÂ’t get them out of your head. TheyÂ’re the cars that will forever excite you when you spot a clean one in traffic or in a parking lot.  There are plenty of recent examples over the past couple of decades that could count as instant design classics. But then we got to thinking, what 2021 models will be forever cool to stare at? Which new cars and trucks on sale today will we be shopping on eBay late at night in the 2030s? We kept supercars and other ultra-expensive cars off the list to keep things within the realm of attainability, and ended up with 12 total cars. Lexus LC WeÂ’re not applying a numerical ranking to any of the cars on this list, but if we were, the Lexus LC would be No. 1. There isnÂ’t another car design out there that can stir our emotions the way an LC can when itÂ’s just standing still. This car is a concept design come true in the most beautiful of ways, and itÂ’s a shoo-in winner for Concours events decades into the future. All of this heaping praise, and we havenÂ’t even gotten to the LC 500Â’s intoxicating 5.0-liter V8. It doesnÂ’t win drag races. It wonÂ’t be the fastest around the track against any similarly-priced competition. But none of that matters. ItÂ’s quite possibly the best car you can buy new, and that says it all when it comes to the LC. Chevrolet Corvette It might not be the stunner that the Lexus LC is, but the new C8 Corvette is and will always be a special vehicle. ItÂ’s the first mid-engine Corvette, which instantly cements it into an automotive hall of fame section of sorts. All of the performance stats and specs are there to back up its supercar-like looks, and it remains the best performance bargain on sale today.