Remember how Brian May did joke subtitles for each of the four versions? Well, I've worked out some "correct" titles for them:
1. Driven By You (Radio Edit) "edited version for DJ's in something of a hurry"
2. Driven By You (Radio Edit w/o Intro) "pollarded version for DJ's under pressure"
3. Driven By You (Call Out Research Hook?) "special version for DJ's under extreme stress"
4. Driven By You (Album Version) "proper version for connoisseurs and relaxed DJ's"
Used queenvault.com as a source.