Unofficial Picture: 2013 BMW 1-Series M Sport

The first pics of BMW's all-new 1-series M Sport have leaked onto the internet.

The popular trim level will be available with all of the 1-series' four-cylinder engines - a brace of petrol units and a trio of diesels - and features a range of cosmetic and mechanical upgrades.

The pictures reveal a more aggressive look for the BMW 1-series M Sport over the standard five-door hatchback it is based on, including revised air intakes and a new bumper at the front. The rear is also set to get a new bumper, a pseudo diffuser and new exhaust tips. New M Sport alloy wheels complete the exterior changes.

Inside, M Sport 1-series will get sports seats, an M Sport-badged steering wheel, pedals, handbrake and gear level, and M Sport-badged sill plates.

The package is expected to reach the UK in early 2012 following the standard car's launch in September.

Thanks to: Autocar