Originalmente Colocado por FernandoAc
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Um Smart For2, independentemente da arquitectura, iria sempre ser algo delicado dinamicamente. 1.8m de distância entre-eixos, e tão alto como é largo (pouco mais de 1.5m), a dinâmica sofreria sempre.
Um toyota iq, por exemplo, é bastante melhor resolvido, pois não só acrescenta preciosos 20cm à distância entre-eixos, como é bastante mais largo (aproximadamente 1.7m), o que é excelente para a causa da estabilidade.
Um Up tem 2.42m de distância entre-eixos. É curto, mas está ao nivel de carros como o Mini, ou um ... 911.
Caso tivesse motor atrás e mantendo as dimensões, certamente a dinâmica seria tão bem resolvida como a que apresenta agora.
O Mitsubishi i, que recorre a este layout, e apesar das dimensões de kei-car, que faz com que seja muito estreito, consegue boas reviews no campo dinâmico, mas tendo em conta a enorme quantidade de variáveis que define a dinâmica de um automóvel, não seria o posicionamento do motor que o afectaria, pois teoricamente, até é superior ao tipico tudo à frente, com o motor colocado em posição mais baixa e, mais importante, colocado imediatamente à frente do eixo traseiro, e não "pendurado" para lá do eixo dianteiro, como nos FWD.
As with its performance, the i’s dynamic limits are more than high enough for its natural in-town habitat. Yet while the narrow track and skinny front tyres mean that handling expectations are probably fairly low, it actually turns in a fairly impressive performance.
The wheel-at-each-corner stance allowed by the rear-mounted engine means the i boasts an impressive 2550mm wheelbase – longer than a Colt’s. This, in conjunction with some fairly soft springs, makes for a very compliant ride for something so small. The i shrugs off potholes and speedbumps with an amusing disdain, while reasonably firm dampers keep the body under good control over higher-speed undulations. Ultimately it will start to float slightly, but it’s vastly better at dealing with rough British tarmac than the usual jiggly city car set-up.
Grip levels aren’t high, but despite the low expectations raised by their seemingly pram-like 145 profile, the front tyres actually hang on for far longer than those of a Smart ForTwo. It’s therefore possible to hustle the i along at a reasonable pace, at the cost of fairly spectacular body roll. Pushing the i too hard quickly takes it to predictable understeer, with little enthusiasm for tightening the cornering line on a lifted throttle. But in the wet the i reveals a nore neutral balance, showing a deftness of touch around our wet handling circuit.
The light assistance of the electric power steering makes for easy in-town manoeuvrability. The tight turning circle makes it easy to thread the i through gaps that other city cars wouldn’t dare attempt.
The over-assisted brake pedal doesn’t inspire confidence, but the combination of ventilated front discs and rear drums is effective enough.
The wheel-at-each-corner stance allowed by the rear-mounted engine means the i boasts an impressive 2550mm wheelbase – longer than a Colt’s. This, in conjunction with some fairly soft springs, makes for a very compliant ride for something so small. The i shrugs off potholes and speedbumps with an amusing disdain, while reasonably firm dampers keep the body under good control over higher-speed undulations. Ultimately it will start to float slightly, but it’s vastly better at dealing with rough British tarmac than the usual jiggly city car set-up.
Grip levels aren’t high, but despite the low expectations raised by their seemingly pram-like 145 profile, the front tyres actually hang on for far longer than those of a Smart ForTwo. It’s therefore possible to hustle the i along at a reasonable pace, at the cost of fairly spectacular body roll. Pushing the i too hard quickly takes it to predictable understeer, with little enthusiasm for tightening the cornering line on a lifted throttle. But in the wet the i reveals a nore neutral balance, showing a deftness of touch around our wet handling circuit.
The light assistance of the electric power steering makes for easy in-town manoeuvrability. The tight turning circle makes it easy to thread the i through gaps that other city cars wouldn’t dare attempt.
The over-assisted brake pedal doesn’t inspire confidence, but the combination of ventilated front discs and rear drums is effective enough.
The i is shorter and narrower than a Toyota Aygo, narrower even than a Smart. So what you really want to know is, just how unstable does it feel at speed, and does it feel like it’s going to fall over when you throw it into a corner? With the engine mounted just ahead of the rear axle, it actually has quite a sweet inherent balance, once you get over the sensation of teetering atop a shopping trolley, though hard cornering isn’t exactly in its ‘comfort zone’. In the dry it’s the front that gives up the fight first; in the wet, with drive going to the rear and no traction control, you can even make it do little skids. It wanders around a bit, especially in cross winds, but relax with it and it’ll buzz along quite happily, occasionally nudging into its speed limiter at an indicated 86mph.
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