RAC Cars News


Mercedes convertible GT Roadster revealed

By raccars Published


The Mercedes-AMG GT Roadster and its twin, the GT C Roadster, are teased ahead of Paris.

A series of official photos have been released in order to show off the new Mercedes-AMG GT Roadster before the 196mph two-seater makes its world premiere at this month’s Paris motor show.

Following a similar approach to that adopted when the GT Coupe was launched in Britain last year, buyers will be presented with two distinct versions of the Mercedes-AMG GT Roadster from which to choose when it goes on sale in the UK later this year.

There will be the standard GT Roadster, together with a more comprehensively-equipped version, the GT C Roadster. Deliveries are expected to start in April 2017.

Official prices for the two cars have not yet been announced but there is speculation that Mercedes will put around £10,000 on the prices of the equivalent GT Coupes. This would mean that the most basic GT Roadster would have a price tag of almost £107,000 and the GT C Roadster could nudge £120,000.

Styling updates on the Mercedes-AMG GT Roadster

The GT Roadster will feature the styling updates which were unveiled in June on the GT R. It will have AMG’s new distinctive grille with vertical chrome bars and an altered shape in comparison with the GT Coupe version.

Active air management

The GT Roadster also features the GT R’s active air management technology to improve aerodynamics and boost the engine's cooling efficiency. The air management system has vertical louvres in the grille which open and close automatically according to the engine’s temperature. This either boosts cooling or enhances smooth airflow.

The GT Roadster has larger air ducts than the GT Coupe, as well as boasting rather more defined sills beneath the doors.

Differences in width

The two GT Roadster variations are different in width at the rear as a result of different rear bumpers being used.

The standard version shares a bumper with the GT Coupe, whilst the GT C has the GT R’s 57mm wider bodywork. This means that whilst the standard GT Roadster has 19-inch rear wheels with 295/35 profile rubber, the GT C can run larger 20-inch wheels with 305/30 tyres.

Following in the footsteps of its SLS Roadster predecessor, which was made from 2011 to 2014, the new Mercedes-AMG GT Roadster has an automated fabric roof, which comes in a choice of three colours and is supported by a steel, magnesium and aluminium frame. The makers claim that the roof can close in just 11 seconds whilst travelling at up to 31mph. It folds and stows above the rear bulkhead to the rear of the two-seater’s cabin.

A stiffened aluminium body structure, complete with an extra dashboard support, an aluminium cross member to support roll-over bars and thicker sill elements are designed to offset the absence of a fixed roof.

The GT Roadster also boasts greater power reserves compared with the GT Coupe in order to balance out the greater kerb weight which results from the electric roof and its associated stiffened structural measures.

A boost to output

The GT line-up's third model has the same V8, 4.0-litre, twin-charged petrol engine as the AMG coupe but with boosted output. The 456bhmp in the GT Coupe becomes 469bhp for the GT Roadster and the GT S Coupe’s 502bhp rises to 549bhp with the GT C Roadster.

Torque also increases on the GT C and the GT, going up by 22lb ft, to reach 464lb ft in the standard version and 501lb ft in the GT C. To put these figures into perspective, the Porsche 911 S Turbo Cabriolet offers 516lb ft and 571bhp with its 3.8-litre twin-turbocharged, six-cylinder engine.

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