We were approached by a company who were essentially looking to box shift Toyota engines. They were looking at fitting a Toyota to S1 Elise, and had purchased the cheapest Elise they could find (their words), and installed a 3ZR engine, adapted to the PG1 gearbox. This is basically the 2 litre version of the 2ZR Lotus put into the S3 Elise from 2012-on. We did a few bits on the car, including the exhaust manifold.
It had some potential, but the time for engine conversions had passed, and was in decline, as cheap Elises became fewer, and the value of original cars increasing. My abiding memory is of the head gasket giving up on me somewhere near Oulton Park (as per photo, using shoes to let some heat out waiting for recovery). They had the car back after that, and that was the end of our involvement. I believe they fixed the engine and sold the car, which later re-appeared for sale a few times, and evidently at some point someone emptied their wallet into the bodywork.