Audi Q7: Perfect combination of urban and off-road

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Audi Q7: Perfect combination of urban and off-road [Copy link]

The Audi Q7 is late to the party, but it is coming strong.

　　The Audi Q7 is huge and hard to see in full view in crowded city traffic, but its high seat gives the driver a commanding view and a wide field of vision. Audi Chairman of the Board Dr. Winterkorn likes its technology and power. The Q7's 4.2-liter V8 engine also has direct injection technology. People already know this from the latest sports car RS4, which is very popular as a high-end sedan with high speed capability. The latter's edge is restrained when it is put into SUV. The modified four-valve V8 engine has 80 horsepower lower than the RS4, retaining 350 horsepower. However, the torque has increased, which is more in line with the personality of the Q7. The FSI engine cleanly crushes all possible doubts about its suitability for SUVs. The decisive factor is the magnesium metal two-stage variable intake pipe. Before the inhaled air enters the combustion chamber directly to mix with the fuel, the electric motor has a strong regulation effect at the intake pipe, which greatly improves efficiency. The V8 engine keeps the lambda value of the gasoline/air mixture strictly controlled at 1. The power is strong, reaching 6800 rpm is effortless. No noise, you can hardly hear the engine working. After pressing the accelerator pedal with all your strength, you can only hear a smooth and elegant roar.

　　The technical support for this is a six-speed automatic transmission. It complements the engine and allows the Q7, which weighs 2366 kg, to accelerate from rest to 100 km/h in just 7.4 seconds. Like all low-friction sports, sliding losses are not worth mentioning here.

　　Audi Quattro uses the latest generation of full-time four-wheel drive system torque sensing automatic locking differential on the Q7, which Audi calls the Torsen differential. It can distribute the driving force unevenly to the front and rear axles according to actual needs. The torque distribution ratio between the front and rear axles is between 42 and 58.

　　In the case of changing wheel-to-ground adhesion, such as on wet roads or muddy fields, the differential can provide up to 65% and 85% of the torque distribution to the front and rear axles respectively. If the wheels on one of the axles start to spin, the electronic differential lock system will strengthen its control through appropriate braking intervention, and transmit more driving force to the remaining wheels. The ESP electronic stability system, which can be selected in off-road mode, is very practical on mountain roads, including the downhill driving assist function. The optional adaptive air suspension can also increase the minimum ground clearance to 240 mm when driving slowly. These ensure the Q7's good off-road capabilities.

　　Even when driving fast, the speed-dependent power steering system can operate evenly and actively. Even when turning at high speeds, there is no need to make steering corrections continuously. Although the body will sway, it does not affect driving.

　　The outstanding braking performance also ensures driving safety. The braking force is extremely strong. Even when braking in an emergency, the good braking device can always keep the wheels in a rolling state with slight slippage and will not lock. Not only does the load change have no effect on the braking effect, but the Q7 also has no braking force attenuation. In the automotive engine and sports test experiments, the Q7 also successfully achieved that the braking distance data obtained after 10 consecutive brakings has almost no change. The Q7 is like a duck in water on federal highways and highways. Here, the wide view and precise electronic sensor processing are perfectly combined. Quiet and comfortable.

　　The adjustable air suspension can be used to counteract the car's swaying movements at high speeds in the automatic mode. You can also choose the comfort mode. In this mode, it is as if a steam roller has driven over it in advance, and even the smallest bumps and cracks in the asphalt are hardly felt. The dynamic stability control system prevents the body from swaying violently, and the leveling system balances the load of the vehicle and the trailer.

　　This is important, because the Q7 can tow a trailer of 3,500 kilograms. With five people, there is still 775 litres of luggage space available. If the rear seats are folded down - without removing the headrests, the luggage space can be increased to 2,035 litres. And the rear end can be lowered by adjusting the air suspension by 7 centimetres. Side

　　assist: no blind spots. Based on the results of the accident research department, Audi has been fighting against the dangers of changing lanes. At the touch of a button, the side assist system solves the problem of blind spots with the help of two 24-gigahertz radar sensors. At speeds of up to 60 mph, the two sensors start checking the space behind and beside the Q7 and provide the driver with information about vehicles approaching or overtaking, parallel to the image in the rearview mirror. The sensors have an effective radius of up to 50 metres and can even accurately determine the position of motorcycles. If a vehicle now appears next to the Q7 within the sensor range or approaches from behind at high speed, an LED indicator in the corresponding exterior mirror lights up. If the lane change indicator is still on, the LED starts flashing. The brightness is always different from the surrounding lights and can be adjusted. The spacious interior

　　allows passengers to sit comfortably and rest. The front seats are ergonomically designed and the rear seats are also comfortable. Not only can two individual seats be selected, but they can also be adjusted forward and backward by 10 centimetres, and even the tilt angle of the backrest can be adjusted. A folding third row of seats is also available as an option.

　　Overall, the Q7 has typical Audi style, high-quality materials, fine workmanship and strong practicality. The instrument panel follows the style of the A6 and is as neat as an accountant's desk on Friday afternoon. Design director De Silva thoroughly implemented the principle of clear lines. The center console is concise and easy to operate, and it will not be dazzling even if all the configurations are installed. Optional configurations include excellent DVD navigation system, four-zone automatic constant temperature air conditioning, keyless operation system, BOSE surround sound and blind spot monitoring system.