Of course, the ADAS automatic driving assistance system that the small partners are most concerned about recently is not missing, and the bmw PersonalCoPilot intelligent driving assistance technology that the introduction model is fully equipped with the code name 5AU, in addition to the basic items such as active anti-collision assistance, active distance control and active lane maintenance assistance that have reached the Level2 level, also provide congestion traffic assistance that can detect the front car route below 70 km / h and continue to follow the car. The side anti-collision assist (70 to 210 km/h) that actively maintains the distance between the vehicles on both sides to avoid collisions, and the steering assist that responds to the appearance of obstacles in front of it below 160 km/h, detects the space around the vehicle and assists in steering assist to reduce the possibility of collision dodge steering assist, etc., brings more comprehensive driving safety protection capabilities.
The test drive features upgraded M-double front-seat sports car seats with better coverage on both sides and an exclusive M-shaped emblem embedded at the bottom of the headrest. Although the body size has been enlarged, the height of the floor inside the car has also been improved, and the head space for occupants above 175 cm is still cramped. The luggage compartment volume has been increased to 470~1290L, and the large opening diagonal rear tailgate and 4/2/4 separation of the front and rear seat backs can provide spacious and flexible space utilization functions. Since the M440i high-performance version has not yet been deployed, the new generation of 4 Series GranCoupe introduced in many regions only has two power options, 420i and 430i, both equipped with B482.0L straight four gasoline turbo engines, with a maximum output of 184hp/30.6kgm, 245hp/40.8kgm, driven by the same Steptronic sports eight-speed manual automatic transmission, 0~100 km/h acceleration can be 7.9, It takes 6.2 seconds to complete, and the speed is 235 and 250 km /h, respectively.
Figure 18 = B482.0L straight quad turbo unit with a maximum output of 245hp/40.8kgm has a performance level of 6.2 seconds of zero hundred acceleration. The overall power response of the 430iM Sport GranCoupe in this test drive is just like the BMW we are familiar with, whether it is a leisurely driving in the urban area or a high-speed driving in the city, it can give people a very smooth and smooth and controlled feeling, in addition to being able to use different driving modes such as energy-saving Pro/Comfort/Sport/Racing to adjust the throttle response and steering assist.
Further through the transmission itself D / S two different gear modes, to achieve instantaneous acceleration overtaking or easy climbing to the top and other different driving needs, in addition, like test driving because of the choice of M sports advanced kit and more Sprint sprint function, just long press the left paddle for about 1 to 2 seconds to immediately switch to the sport mode, while reducing the minimum gear allowed by the speed, providing the most direct and complete power output.
The gearshift seat and iDrive control assembly have also been replaced with a new generation of shapes, and there are also dual cup holders and wireless charging devices for mobile phones in front. According to the original factory information, the new generation of 4 Series GranCoupe has been redesigned for suspension geometry and shock absorber design, and added a rigid reinforced tie rod structure to the engine room and rear axle, and the front and rear wheelbases are wider than the Coupe/Convertible version, reflected in the road performance, it is indeed more difficult to bring a two-door model-like light and clean feeling, but it is closer to the neutral calm of the 5 Series medium and large luxury RVs.
In addition, the new car continues the stylized setting of the sports car with four doors without window frames, whether it is the quiet performance in the car, or the chassis isolation such as road vibration and tire rolling noise, which is very good, giving people a particularly stable and calm driving feeling. In addition, the optional M sports car electronic suspension with the front 245/40R19 and rear 255/40R19 tire sizes can maintain flexible and hard shock absorption performance in various modes, which is also helpful for the improvement of overall comfort.
The 430iM Sport comes standard with a 19-inch hoop tire, and the hub style is available in two options: the Y-spoke 859M and the double-spoke 860M in the picture. The new car has excellent in-car sound insulation and road noise isolation, and with a flexible suspension setting, it brings a leisurely and comfortable driving experience. The 430iM Sport Gran Coupe's standard variable sport steering system first creates a rather light and sharp steering feel, but the wide and long body size still makes people spend a little effort to carefully control the driving route, and the follow-up first-class flexible rear axle dynamics are believed to bring rich driving pleasure when the weather and road conditions are good, but if you want to test drive on the day of the rainy weather.
Since the performance of the original tire PirelliPZero is only average, the timing and force of the throttle pedal must be postponed when cornering, avoiding slippage in the rear of the car and causing the dynamic stabilization system to intervene to limit the power output. The variable sport steering system delivers a fairly light and smooth steering feel, while the flexible rear axle response fully demonstrates the essence of the rear-drive car. In addition to continuing the eye-catching styling style of the new generation 4 Series GranCoupe, from the cabin atmosphere to the driving experience, it is more oriented towards the luxury GT sports car positioning suitable for comfortable long-distance travel for many people, with a rich level of scientific and technological configuration and a variety of personalized options, I believe it can meet the pursuit of practical and personalized small partners.