The correct information is that VW did invest $1B and will invest $4B if certain conditions are met in the future.

After this news, I might up my investment to up to $10B.

Technically correct, the best kind of correct.

"He placed among the top 5 best in the race"

Wow! I wonder if he was #1!

I mentally translate "up to" as "less than", maybe it should be a browser extension.

I invested up to $10B.