RILEY - MOTORSPORT RACE CARS
The history of the six-cylinder racing cars is particularly complicated, and not fully understood. The table below attempts to explain what is known, but it is not complete, nor is it ever likely that it will be. Some of the information given is plausible speculation, primarily from the Riley Register's Volume 5 about the MPH models, written by Robin Cameron. There is also a strong suspicion, albeit unconfirmed, that the first two batches of Alpine Gamecocks were the same chassis, re-registered for the 1934 event. However, one of the cars may have already been rebuilt as a Falcon-type saloon for the 1934 Monte Carlo Rally.
| Chassis No | First known Registration | Date of Regn | Engine type | History |
| R12/103 | KV1710 | 1/6/32 | 1500cc 14/6 | Brooklands Six |
| 12R 101 | KV1861 | 26/5/32 | 1500cc 14/6 | Brooklands Six |
| 12R 102 | KV1862 | 26/5/32 | 1500cc 14/6 | Brooklands Six |
| KV5691 | 1933 | Alpine Gamecock; Registration Number and possibly chassis re-used for Falcon-type Saloon for 1934 Monte Carlo Rally. | ||
| KV5692 | 1933 | Alpine Gamecock | ||
| KV5693 | 1933 | Alpine Gamecock | ||
| 4/101 | KV5694 | June 1933 | 12/6; 14/6 | TT Racing Six, became MPH Prototype |
| 4/102 | KV5965 | 12/6 | TT Racing Six, became Dixon Special | |
| 4/103 | KV5696 | 12/6 | TT Racing Six, became White Riley KV5929 | |
| KV5809 | 1933 | Alpine Gamecock | ||
| 4/104 | KV6078 | 12/6 | TT Racing Six, became Dixon Special | |
| 4/105 | KV6079 | June 1933 | 12/6; 14/6 | TT Racing Six, became MPH Prototype |
| 4/106 | KV6077 | 12/6 | Grebe Prototype; Registration soon transferred to a saloon | |
| 44T1733 | ADU27 | 1934 | 14/6 | Alpine Gamecock; Later sold to Dobbs; Registration No re-used on replica |
| 44T1734 | ADU28 | 1934 | 14/6 | Alpine Gamecock; Later sold to Dobbs |
| 44T1735 | ADU29 | 1934 | 14/6 | Alpine Gamecock; Later sold to Dobbs |
| 44T2127 | KV9477 | 1/6/34 | MPH Racing Model; Registration No re-used on replica | |
| 44T2128 | KV9478 | 1/6/34 | MPH Racing Model, possibly became Dobbs Special, and now 'second' 44T2255 - OW7925; Original registration withdrawn October 1934; Registration No re-used on replica | |
| 44T2142 | KV9673 | June 1934 | MPH Racing Model, possibly became Dobbs Special; Registration No re-used on replica | |
| 44T2257 | AHP203 | 30/11/34 | MPH Racing Model; reported broken up 16/4/1935 | |
| 44T2407 | AVC15 | May 1935 | 6; 12/4 | MPH Racing Model |
| 44T2418 | AVC16 | 31/5/1935 | 6; 12/4 | MPH Racing Model, became TT Sprite |
| 44T2419 | AVC17 | 31/5/1935 | MPH Racing Model, became TT Sprite | |
| 44T2420 | AVC18 | 31/5/1935 | MPH Racing Model; reported dismantled January 1936 | |
| 22T1750 | AVC19 | 12/4 | TT Sprite | |
| 22T1916 | AVC20 | 12/4 | TT Sprite |