The Volkswagen Group MSB platform (Modularer Standardantriebsbaukasten, modular standard drivetrain matrix) is the company's strategy for shared modular design construction of its longitudinal, front-engine, rear-wheel-drive layout (optional front-engine, four-wheel-drive layout) automobiles. It was developed by Porsche for vehicles with longitudinally mounted engines and gearboxes and four-wheel or rear-wheel drive. It has been in use since 2016 and was introduced with the second generation Porsche Panamera. The other version was called " J1 ", is a heavily modified version of the MSB platform to accommodate electric cars.