2012 Bentley Mulsanne Review, Pricing, Release date and Specifications

It hardly fits the genteel image typically associated with the company, but Bentley’s success in the U.S. is directly attributable to the hip-hop generation’s affection for the Arnage. If rappers like P. Diddy and Jay-Z hadn’t associated that luxury liner with Cristal, Hennessy, and big-time ballin’, who knows whether Bentley would have made the leap from half-dead brand to ultra-luxury car of choice during the past decade.

Unlike the Continental models, which broadened the brand’s appeal and share much of their underpinnings with VW products, the Arnage was developed when BMW was the engine supplier for both Rolls-Royce and Bentley. Introduced in 1998 with a BMW engine—later replaced by Bentley’s own “6¾-liter” twin-turbocharged V-8 when VW acquired the brand—the Arnage was as long in the tooth as the woolly mammoth by the time the 2009 Final Edition was announced. We hear that the VW beancounters wanted Bentley to modify an existing VW Group platform for the Arnage replacement but that Bentley management held out for a unique architecture that plundered the corporate parts bin only where it made sense.

Limited Amount of VW Group Bits

The control-arm front suspension of the new Mulsanne, for instance, is shared with the Audi A8, and the control-arm rear layout comes from the Audi A6 Avant. The HVAC system is an A8 unit, and there is shared electrical architecture with other VW cars, but otherwise, the Mulsanne is all Bentley, designed and built at the company’s spiritual home of Crewe in northern England. The body is manufactured at Crewe, unlike those for the Continental range, which are made in Germany and shipped to England for final assembly. The Mulsanne is a bigger car than the regular-length Arnage, with a 128.6-inch wheelbase and overall length of 219.5 inches, increases of about six and seven inches, respectively. Despite this and a lot more standard equipment, the Mulsanne is 66 pounds lighter than the Arnage, Bentley claims, thanks to the use of aluminum for the car’s doors, hood, and front fenders, as well as composites for the trunk. However, at 5700 or so pounds, the Mulsanne won’t be winning any medals from tree huggers.

Bentley decided to retain the twin-turbo 6.8-liter pushrod V-8 engine that traces its lineage back to 1959. However, it was comprehensively reengineered to meet modern emissions standards and for better fuel economy, which Bentley claims is improved by 15 percent. The block is all-new, even though it retains the same bore centers as the old one. Indeed, the engine has the same 104.2-mm bore and 99.1-mm stroke of the Arnage’s engine, but all the internal parts and the cylinder heads are new. This engine also has cam phasing and cylinder deactivation for the first time. At relatively low engine speeds on part throttle, in fourth gear and above, the V-8 becomes a V-4 by cutting the spark and fuel as well as closing both valves on four cylinders. The engine produces 505 hp at 4200 rpm, up 6 hp on the Arnage T’s version of the engine, and 752 lb-ft of torque at 1750 rpm. This is an increase of 14 lb-ft over the Arnage T mill but delivered 1450 revs earlier. (The version of the V-8 used in the low-production Brooklands is still king, as it makes 530 hp and 774 lb-ft of torque.)

The torque is taken to the rear wheels via a ZF eight-speed automatic transmission, another feature that contributes to the improved gas mileage. There are sport and normal modes, as well as paddles for manual shifting. Bentley uses electronically controlled air springs all around in combination with anti-roll bars, and the suspension is continuously variable. If the computers don’t keep it in the driver’s sweet spot, there are four selectable suspension modes: comfort, which is tuned for a cushy ride and lighter steering efforts; “B,” which is the Bentley engineers’ favored calibration; sport, which has firmer steering and damping; and custom, which allows the driver to mix and match suspension and steering settings. The brake discs are monstrous cast-iron-and-aluminum pieces, 15.7 inches in diameter at the front and 14.6 inches out back. The Mulsanne rides on 20-inch wheels as standard, with 21-inchers on the options list.