Alfa Romeo 156 | evo Car Reviews | Car Reviews | evo

29 Apr 2015 | Author: | Comments Off on Alfa Romeo 156 | evo Car Reviews | Car Reviews | evo
Alfa Romeo 156

Alfa’s new Q4 four-wheel-drive system is an bit of kit, and points to a bright

July 2004

Fifth lucky? Twenty-one years Alfa Romeo introduced its 4×4 road car, it is out another generation of all-wheel-drive this autumn. (The four generations, if you’re were the 1983 33, the 1991 33 4, the 1992 155 Q4 and the 1994 164 Q4. All these systems were different.)

But time it’s not another volume flash in the pan. under the skin of the two 156 Q4 models both estates, one called the with raised suspension and to be an Audi All-Road, the other lower and using the existing tag – is Alfa’s new-generation four-wheel-drive system, dubbed Q4. The of Q4 is that it will underpin all of the company’s new-generation models, the 156 replacement, the 157.

The Q4 system is unique in that it’s hooked up to a transversely engine, it’s a permanently four-wheel drive system in the of Audi’s quattro running

Rival systems – as Volvo’s AWD or the VW Group’s 4motion run as conventional front-wheel drive until the front wheels to slip. Then a Haldex is electronically activated, sending briefly to the rear wheels. But the slipping stops, so does the drive.

Paulo Massai Alfa’s VP of Engineering – was of rival Haldex-based systems and about the superiority of Alfa’s new design.

Massai told evo that the Q4 benefits from instant transfer and doesn’t need to a skid. In a steady state, Q4 58 per cent of the engine’s torque to the wheels, which should in a much more ‘rear-drive’ than any other transverse-engined car can

The key is the new Torsen C central differential. accelerating hard, the C diff can as much as 70 per cent of the torque to the wheels. However, if the car is oversteering, the Q4 60 per cent of the torque to the front partly to give the rears a to regain grip.

On slippy surfaces, individual can be braked and the torque shifted to the wheel, which should more grip.

So much for the Time to test the reality in the and Sportwagon Q4s, both by the same 150bhp JTD turbodiesel, and of them for sale in the UK. Still, on the roads of Sardinia they at least give us a flavour of the forthcoming 157 could be like.

If a fan of this kind of thing I am) the Crosswagon looks fantastic. The is stunning too, especially the steering wheel and steel trim. Engine refinement is OK for a turbodiesel, but is pretty intrusive at revs.

Thanks to the punchy 225lb ft at 2000rpm there’s good, hardly tyre-burning, overtaking

The very aggressive, washboard section of the launch route up the 156’s lack of body with the rear view vibrating and the tailgate chattering in with the ridges. In real-world though, an appealing vehicle.

Alfa Romeo 156

The is more of a driver’s car, it, too, rides on slightly suspension. It felt peppy, a single-turbo diesel engine is not at its on demanding switchbacks, where easy to ‘fall off’ the curve.

The SW feels very on the really twisty stuff and is to be pushed hard on the more mountain roads, the Q4 transmission it stay resolutely neutral, virtually no tyre scrub or from the front end. It follows your intended through the distribution of torque than just relying on the of the tyres.

And it’s surprising that as the SW a hard-driven switchback, there’s lurching weight transfer in the direction. This car stays no matter how often or tight the of direction. When the front do eventually give up the ghost, slide gently.

On fast, roads, the SW was swift and flowing.

The SW’s main problem is the It not only suffers a lack of but the car doesn’t respond quickly to the first quarter-turn of lock. The way to to this perceptible time-lag is to a fraction early.

The SW feels like a car of two distinct razor-sharp running gear and an platform and steering. But I discovered to know that when the 157 is the Q4 system has the potential to make it a serious driver’s car.


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