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Mazda MX-5 RF

The independent definitive Mazda MX-5 RF video review
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    SHOWING ITS METAL (some text hidden) SECTIONED_new_mazdamx5rf_2020

    By Jonathan Crouch

    Defying expectations, the Mazda MX-5 RF Retractable Fastback might just be an even better bet than the standard roadster model. Like that variant, it now gets a bit more handling cleverness. Jonathan Crouch takes a look.

    Ten Second Reviewword count: 90

    It would have been incredibly easy for Mazda to ruin the MX-5 by putting a folding hard top roof on it. Just as well then that instead of rushing this concept to market, the Japanese company did a proper job on this car. It's not just an MX-5 with a different roof. Mazda have managed to imbue the RF derivative with a more mature feel without losing the fun factor. With this updated model, the brand has now smartened the exterior looks, added handling updates and improved the infotainment system.

    Backgroundword count: 167

    Cars with folding hard top roofs can be rather grotty things. Curiously malformed with distended bottoms and pinched cabins, they usually lose their looks and their practicality once the roof's up and all you're left with is toothbrush room in the boot once the hood has done its contortionist's trick. Oh yes, these cars offer the customer more. More weight, more complexity and more expense, that is. Therefore, we shuddered when Mazda first announced a 'Retractable Fastback' 'RF' version of its fourth generation MX-5. Seems we needn't have worried after all. It's the exception that proves the rule. Utilising the basis of an existing MX-5, Mazda managed to build a car that will appeal to a subtly different audience. For many metropolitan types, parking on street is a way of life but the hard-topped RF variant offers additional security and is vandal-proofed in a manner that no fabric-roofed car can be. It's also a little more refined than the soft-top model. Sounds promising. Here's the updated model.

    Driving Experienceword count: 513

    Because the metal folding roof doesn't weigh much, there aren't really any handling downsides over the conventional Roadster model. As you would expect though, the suspension and electric power steering parameters of the MX-5 have been specifically tuned for this Retractable Fastback version. In addition, a sound-absorbing headliner used in the front and middle roof panels combines with sound insulation around the rear wheel housings to deliver a significantly quieter cabin when the roof is closed. If you want to open the top, this can be done on the move at speeds of up to 6mph. This RF MX-5 shares with its Roadster showroom stablemate the latest package of engineering and handling updates. Throttle response is now sharper, the electric power steering has been adjusted and steering rack friction has been reduced to deliver more natural and fluid response through the turns. Mazda's also introduced a new Asymmetric Limited Slip Differential - basically, a cam mechanism has been added to the conical clutch. The cam angle is set differently for deceleration and acceleration, thereby achieving optimal limiting force of slip during fast cornering. If that cornering happens to be on a circuit, you'll appreciate the new Dynamic Stability Control track driving mode, which delays the usual stability intervention for a purer track experience. Otherwise, everything's much as before. Which means that this MX-5 RF continues to conform to five key criteria that Mazda claims define this model line - rear drive with a front-mid engine layout, 50/50 weight distribution and an eagerness to change direction, plus a low kerb weight and an affordable price. This 'ND'-series design continues to be offered with either a 1.5-litre 132PS unit or a 184PS 2.0-litre engine. The 2.0-litre variant's rest to 62mph sprint time is rated at 6.5s and if you specify a manual gearbox with this engine, your car will come with a front strut brace, a limited slip differential and Bilstein dampers. The 2.0-litre version can be ordered with an optional paddleshift auto. The MX-5 isn't about straight line pace, it's about agility and tactility. Because the engines are so small, they can be tucked down and back in the car. Weight has been pared back by using aluminium for the bonnet, boot and front wings, while the soft top hood is also very light, improving the centre of gravity. Much of the front suspension is aluminium, as is the gearbox casing, the differential casing and the bracing that runs down the car's backbone. The virtuous circle of weight saving means that the smaller wheels only need four bolts as opposed to five. Lower rotational masses mean that the brake assemblies can also be made smaller, simpler and lighter. Which you'll enjoy at speed around the corners. Later versions of the pre-facelifted model benefitted from the addition of a clever 'Kinematic Posture Control' system, which applies a very small amount of brake force to the inner/unloaded rear wheel during cornering. The resulting brake force pulls the body down, suppressing body roll to provide more reassuring cornering so subtly that the MX-5's engaging handling remains unpolluted.

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    Category: Convertibles

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