NASA built a Stirling engine and installed it in a Chevrolet Celebrity(1986)

[krunck]

https://ntrs.nasa.gov/citations/19880002196

[h2odragon]

1000 degC temps for valved? gas flow? and "ceramic preheater" yowza

+ 100lb weight and -9 HP

wonder what the thing cost?

and then put it in a chevy celebrity which as i recall was a soda can car often found in shops for "i hit a squirrel and broke it" complaints