Season two constructors will be able to develop some suspension components.

The Spark-Renault suspension had come in for criticism over summer testing and the first four races, with many convinced that the parts were too fragile for the weight of the car and the rough nature of the temporary street tracks being used. Upgrades brought to Miami appear to have largely solved the issue, although Mahindra Racing’s Bruno Senna suffered two front suspension failures at that event.

Now, it seems that season two manufacturers will be able to design parts of the rear suspension. At present, the rear suspension interacts with the transmission casing, but the transmission is one of the units open for development. It’s likely that constructors will be permitted to revise those parts of the suspension that interact with the transmission – which may include the rear wishbones.

The FIA has published updated technical regulations for Formula E (Formula E technical regulations 2015), which include detailed specifications for suspension.