Ouster Inc, a U.S. startup that makes lidar sensors for self-driving cars and smart cities.
The deal values San Francisco-based Ouster at around $1.9 billion and makes it the fifth lidar manufacturer this year to agree a SPAC merger to go public, following on from Velodyne Lidar Inc, Luminar, Innoviz and Aeva.
SPACs like Colonnade are increasingly popular investment vehicles which raise funds in an initial public offering (IPO) with the aim of buying a private company.