| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| ROVER/TRIUMPH/AUSTIN | GEX77321 | Direct Cross Interchange | 1 |
| ROVER/AUSTIN | GEX77321 | Direct Cross Interchange | 1 |
| AUSTIN/MG | GEX77321 | Direct Cross Interchange | 1 |
| TRIUMPH | GEX77321 | Direct Cross Interchange | 1 |
| ROVER | GEX77321 | Direct Cross Interchange | 1 |
| MG | GEX77321 | Direct Cross Interchange | 1 |
| AUSTIN | GEX77321 | Direct Cross Interchange | 1 |
| BOSAL | 255412 | Direct Cross Interchange | 1 |
| WALKER | 84198 | Direct Cross Interchange | 1 |
| AUSTIN-HEALEY | GEX77321 | Direct Cross Interchange | 1 |
| ROV/TRI/JAG/AUS/MG | GEX77321 | Direct Cross Interchange | 1 |
| ROV/TRIU/JAGU/AUSTIN | GEX77321 | Direct Cross Interchange | 1 |
| QUINTON HAZELL | BLR12 | Indirect Cross Interchange | 12 |