Reuters: South Africa’s National Treasury will press on with plans to introduce a new tax on vehicles designed to curb carbon dioxide emissions, an official said Wednesday, despite concerns this could hamper the ailing auto sector’s recovery. The motor industry is struggling to get back on its feet after being been hit by the global economic crisis and depressed local demand which saw new vehicle sales fall to 6-year lows in 2009. The new tax, mooted last February, is part of government …