Bentley previewed the EXP 9F concept SUV about 2 years ago, the concept has a rigid and masculine styling.

But from the latest spy-shot we get recently, it looks like Bentley revised the exterior considerably, which looks to be more sleek, and the height is lower. Now it is more like a bigger version of the Porsche Macan.

The Bentley SUV will be based on Volkswagen’s MLB Evo platform, which is designed for longitudinal, front-engined, front-wheel drive based automobiles (maybe not familiar to some folks, many of the AWD VW cars, including Audi A4/5/6/7/8, plus the Porsche Macan, are placing the engine 100% in front of the front axle, which is a typical property of FWD pla...

We heard a news today that Mazda is busy working on the new generation of the RX-8 successor, which is famous for its industry-unique rotary engine. One possible name for the new car will be “RX-9”.

Some preliminary details:

– Naturally aspirated rotary engine with SkyActiv technology, output around 300 hp;
– Will be available in coupe style;
– Rear wheel drive layout (of course it must be)
– Two transmission options: 5MT or 6AT;
– Will be announced in 2017.

Below is a rendering of this hypothetical RX-9.

Suspension Design: Double Wishbone

In part II we briefly analyze the first type of suspension: trailing arm. Now let’s take a look at the second major type: double wishbone suspension.

This type of suspension uses two “A” shape arms, one place on the top and the other in the bottom. Because each A arm can limit 2 degrees of freedom, so the two A arms together limits 4 out of the total 6 degrees of freedom. Therefore we still need one more restriction to make the whole system to be 1 degree of freedom.

For front wheels, the extra restriction is the steering arm; for rear wheels, car designers usually use a toe angle control arm.

In the below chart, the one labeled...

There is a rumor saying the redesigned 2015 Mustang will gain around 200 – 300 lb of weights, now it seems this is not true. Below is the official curb weight of all models of the 2015 Mustang:

2015 Ecoboost Manual: 3517 (Convertible: 3642)
2015 Ecoboost Automatic: 3512 (Convertible: 3661)

2015 V6 Manual: 3526 (Convertible: 3644)
2015 V6 Automatic: 3529 (Convertible: 3654)

2015 GT Manual: 3704 (Convertible: 3825)
2015 GT Automatic: 3727(Convertible: 3852)

For your reference, below is the current 2014 model curb weights:

2014 V6 Manual: 3501 (Convertible: 3630)
2014 V6 Automatic: 3523 (Convertible: 3652)

2014 GT Manual: 3618 (Convertible: 3735)
2014 GT Automatic: 3675(Conv...

Today Mercedes-Benz officially announced the detailed specification of the upcoming AMG GT’s engine, codenamed M178.

Highlights as below:

The M178 engine is rated at 510 PS (375 kW, or 503 hp) at 6,250 rpm, with a maximum torque of 650 Nm (479 lb-ft) within 1,750 rpm and 4,750 rpm. The same engine will goes into the W205 C63 AMG, but tune to a lower output (probably around 470 – 480hp). The AMG GT will be announced this fall and go on sale next March as a 2016 model.