Caterham announces Sigma engine no longer available USA

[Mark IV]

Caterham has announced that due to the Sigma 1600 reaching the end of its' use by Ford they will no longer have a supply source for the Sigma. Existing orders will be honored but as of June 11, 2021 no new Sigma orders will be accepted from the USA. A replacement for the Sigma is in the works but it will likely be 2023 before it becomes available. The small inventory of unsold Sigmas will be held for UK, EU and Japanese orders as those are Caterhams largest markets and even then there are few engines unsold.