THis is one of the fastest velomobiles on the market, and one of the lightest.
Base model only weights 22 kilograms.
https://www.youtube.com/watch?v=xCMNCcHZcmchttps://www.youtube.com/watch?v=9dX1nNEG-Tkhttps://www.youtube.com/watch?v=dBXluDSj1jkPrice is 10 000 euro's. Some may think this is expensive, but most new high end motorcycles cost more. It's a niche product.
There are like 15 of these riding in Germany atm., Personally, I'd want one with an electric engine. Aerodynamics is so high it's one of the most efficient vehicles on earth. I know one guy who uses it for daily commutes. The builders wanted speed and practicality. You have much better visibility compared to the average velomobile. It's also a little bit higher thus others can see you better. Imo one of the best velomobiles on the market. You can easily maintain 50 km/h with like 220 watts once you get to speed. Personally, I'd have a small electric engine for starting and small hills because I have weak knees, but its not necessary.