| MODEL | ARIEL MK2 SQUARE FOUR 1959 |
| Year | 1959 |
| Engine Type | — |
| Displacement / Capacity | 997 cc |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | — |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | Carburettor |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | — |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | Expanding brake (drum) |
| Rear Brakes | Expanding brake (drum) |
| DIMENSION SPECS | |
| Overall Length | 2100 mm / 82.7 in |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | 1422 mm / 56 in |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25-19 |
| Rear Tyre | 4-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 23 Litres / 6.1 US gal |
| Fuel Consumption | — |
| Top Speed | — |
A second database listing of the Ariel Square Four Mark II, with the same years as the 4G Square Four Mark II entry. The sheet gives the 997 cc OHV engine capacity, chain drive and drum brakes, but no further detail.
