Rolls-Royce customers are getting younger, chief executive Torsten Mueller-Oetvoes says, as the luxury carmaker embraces You Tube and Instagram and prepares to replace its ageing flagship, the Phantom.

Since 2013, the BMW-owned British brand has introduced the Wraith Coupe, Ghost II limousine and now the Dawn convertible to appeal to customers who would rather take the wheel themselves than rely on a chauffeur.

Last month it announced – on Twitter – that the current Phantom, up to six metres long and selling for more than £300,000, would enter the last stages of production in 2016. The company is moving to all-aluminium architecture in every vehicle sold from early 2018.

“In 2009, the average age of our drivers was 55, now it is 45,” Mueller-Oetvoes said in an interview yesterday at the Geneva Motor Show, adding that deliveries of the Dawn are due to start in the second quarter of this year.

Rolls has marketed the new cars via social media like Instagram, where it now boasts over a million followers. For the first time, the brand is emphasising outright performance rather than style and discretion, in a bid to attract customers who want sporty driving features.

“The cars have more horsepower and more torque,” Moeller-Oetvoes said. Rolls-Royce is also working on an offroader, which will be built at its Goodwood plant in England and enter the market around 2018, he said.

The higher ground clearance of SUVs has proven particularly popular in Russia, China, Brazil, Malaysia, India and other emerging markets with bad roads.

The addition of new models like the Dawn convertible aims to boost flagging sales numbers. Rolls-Royce sold 3,785 hand-built cars last year, down from a record 4,063 sold in 2014, in part because of a 54 per cent drop on sales in China.

“This is a cyclical thing and will normalise,” Mueller-Oetvoes said.