If you already have a website related to electric vehicles, you probably already know your target keywords.
Enter your domain name into Semrush or Ahrefs or another SEO tool.
You will get a list of organic keywords that you rank for.
Filter the results based on keyword difficulty.
Find the keyword that has very low difficulty.
Get a list of these going and pick one of these to title your web 2.0 site.
If you're going to build many web 2.0 pages, distribute these low-difficulty keywords among those sites.
Pretty straightforward.