Marks & Spencer has opted for a new type of articulated trailer, whose teardrop shape is predicted to reduce carbon emissions by 20 per cent, when compared to a standard cab trailer fleet operation. The lightweight trailer, developed and manufactured by Don-Bur, can carry up to 16 per cent more load and has an aerodynamic shape which is said will deliver a 10 per cent fuel saving. The retailer estimates that the trailers will reduce its carbon footprint by 840 tonnes per year. Following successful, controlled testing of a prototype, M&S ordered its first 140. The tear drop trailers are made of ‘technolite’ aluminium panelling, resulting in a saving of 640kgs in comparison with its existing trailers.