The third precondition: All engines, now offered with a standard 8 - speed automatic transmission — a first in this market segment — demonstrate significant
fuel economy advantages over the previous model; in some cases the advantage is far greater than two litres per 100 kilometres.
The latter offer performance and efficiency benefits beyond their simple reduced mass — reduced frictional and rotational losses contribute up to 0.4 L / 100 km of the 3.2 L / 100
km fuel economy advantage Porsche claims the Panamera delivers in comparison to comparable «large luxury four - doors in the 400 and 500hp class».
At an EPA estimated 22 city and 29 highway mpg, the automatic does offer a slight in -
town fuel economy advantage over the manual which is rated at 21 city mpg.
Honda also makes a model with an electronically controlled continuous variable automatic transmission that better uses the engine's available torque, but it's even slower and eats up 4mpg of the
hybrid fuel economy advantage.
To be fair, this European hybrid car offers only a
slight fuel economy advantage over the base model's turbo 2.0 - liter, but the Hybrid also provides 25 more horsepower and almost 100 more lb. - ft of torque, so the more efficient version of the Q5 is also quicker and more powerful.
The six - speed automatic is no match for the Ram's eight - speed (and
the fuel economy advantage it returns), but isn't a bad transmission.
Like most diesels, it will probably offer
a fuel economy advantage over its gasoline counterpart but won't outperform it.
The Mazda is much more fun to drive, has slight price tag and
fuel economy advantages and can be had with a manual transmission.
We're great fans of the Chrysler 300C / Dodge Charger duo, but they seem geared toward a slightly different and more enthusiastic large car shopper, one that's willing to sacrifice a bit of the packaging and
fuel economy advantages a front - wheel drive platform offers in exchange for a more spirited drive.
In city traffic,
the fuel economy advantage climbs to a little more than 30 %.
The common complaint I've heard from those who would rather see the 6.2 available in more trim levels is «the 5.3 really doesn't offer
a fuel economy advantage for much less power.»