Heres a little trick i found to read most if not all the autospeed stuff (without an account)
1. Find a section of text from the little bit they let you read without an account.
2. Copy it.
3. Go to google (or your favourite search engine)
4. Paste it in quotes (ie "and it produces 147kw)
5. Search
6. Click on the "cached" versions of the page- one of these should be the full version.