Honestly what you're asking for is motorcycle-level stuff, partly because of the speed, and partly because of the heavy load (3 passengers, presumably plus the driver/rider), and because the range you want, which at those speeds and loads even on level ground with no wind and open roads is going to take a very large and heavy battery. If there's hills or wind or stop/start traffic, it could take multiple times the size of battery.
With the right skills and parts, you could build it with bicycle stuff, but it will cost more and require more maintenance, and using bicycle motors and batteries you'll either need more of them or have to implement potentially complicated cooling systems.
If you go with motorcycle parts for the bike (trike?), and motorcycle-level batteries and motors, you'll have a lot less problems both in building it and in maintaining and using it, and it'll probably be cheaper. Heavier, but less likely to break without everyday maintenance.
You could look for an existing motorcycle-based trike or bike that does what you want, and then convert it to electric. That's the easiest way. Otherwise, you can look for one that does what you want, and then copy it, which is a little harder but lets you change anything you like while building it.
To convert it, you could look around for used electric motorcycles, and buy a few batteries from them, setting them up in parallel (as long as they're all the same voltage), and using the motor/controller/etc from one or more of them to drive the bike or trike.
Cboy on here has a trike that could probably be adapted to your needs, if lighter batteries were used (the lead batteries it has take up the weight of multiple people; using quality lithium batteries from EVs would allow it to carry more people instead).
There's no one answer to your project; it depends on the money you have to spend on it, the time you are willing to spend on it, and the skills you have (or are willing to learn) to complete it.
Unfortunately it may take a lot more research of your own to do it, especially if you want to do it with bicycle parts.
If you have to do it with all used stuff and build it completely yourself, you could look at Naeem's thread, under Numberonebikeslover, and see what resources he used to make his bike with. His won't do what you want, but it may show you how to use local resources to your advantage if you can't have the stuff you need shipped in.