$50,100 per employee in regulatory safety and compliance costs.[0]
Up to $8k per engine unit produced in EPA regulatory fees.[1]
Between $100k and $500k per engine model variant for EPA testing and General Compliance.[2]
$100k to $200k for Transient & Steady-State Dynamometer Testing.[2]
$150k per engine variant for Useful Life Deterioration Testing.[2]
[0] https://www.msci.org/federal-rules-costs-small-manufacturers...
[1] https://www.ecfr.gov/current/title-40/chapter-I/subchapter-U...
[2] https://www.epa.gov/regulations-emissions-vehicles-and-engin...
That's normal stuff for anyone producing a vehicle, isn't it?