We put the 14 questions a person in Guildford asks before choosing driving school — cost, specialism, who to use, how to check them — to Claude and ChatGPT, 5 times each, 140 answers in all, and recorded every firm the answers named. 30 firms in Guildford were checked against those answers. 14 of them were named at least once. The rest were not recommended in a single answer.
| # | Firm | Named in | On questions |
|---|---|---|---|
| 1 | RED | 14 of 140 answers | 5 of 14 |
| 2 | Andy's Driving Instruction | 9 of 140 answers | 2 of 14 |
| 3 | MGM Driving School Guildford | 8 of 140 answers | 2 of 14 |
| 4 | A to Z Driving School | 7 of 140 answers | 3 of 14 |
| 5 | Guildford Driving Instructor | 7 of 140 answers | 2 of 14 |
| 6 | NextGear Driving School | 7 of 140 answers | 2 of 14 |
| 7 | Driving Lessons In Guildford | 6 of 140 answers | 2 of 14 |
| 8 | PriPlus | 5 of 140 answers | 2 of 14 |
| 9 | AA | 4 of 140 answers | 3 of 14 |
| 10 | JDS Automatic Driving School | 4 of 140 answers | 1 of 14 |
| 11 | My Four Wheels | 3 of 140 answers | 2 of 14 |
| 12 | LDC | 3 of 140 answers | 1 of 14 |
| 13 | Think Driving School | 2 of 140 answers | 1 of 14 |
| 14 | Guildomatic Driving School | 2 of 140 answers | 1 of 14 |
| 15 | GS Driver Training | 0 of 140 answers | 0 of 14 |
| 16 | Ridesure Motorcycle Training | 0 of 140 answers | 0 of 14 |
| 17 | Intensive Driving courses | 0 of 140 answers | 0 of 14 |
| 18 | Lloyd Cliff | 0 of 140 answers | 0 of 14 |
| 19 | Autopass | 0 of 140 answers | 0 of 14 |
| 20 | Acorn Driving | 0 of 140 answers | 0 of 14 |
| 21 | Masum H Driving Instructor | 0 of 140 answers | 0 of 14 |
| 22 | Prime Driving Ltd | 0 of 140 answers | 0 of 14 |
| 23 | Driving Instructor Guildford | 0 of 140 answers | 0 of 14 |
| 24 | DI Jane School of Motoring | 0 of 140 answers | 0 of 14 |
| 25 | J Coates | 0 of 140 answers | 0 of 14 |
| 26 | Good Driving School | 0 of 140 answers | 0 of 14 |
| 27 | Excelerate | 0 of 140 answers | 0 of 14 |
| 28 | Syed Driving School | 0 of 140 answers | 0 of 14 |
| 29 | dtraining.org | 0 of 140 answers | 0 of 14 |
| 30 | Unable to determine | 0 of 140 answers | 0 of 14 |
Firms are ranked by the number of answers that named them, then by how many different questions. The assistants do not give identical answers twice, so a difference of one or two mentions is noise; being named on questions a rival is absent from is not.
Every firm above has a private report: which answers named it, which rivals were named instead, whether its website can be read by the assistants, and the three things that would change the result. We work with one driving school in Guildford, and this index is re-measured every month, so the change is visible here.