- Years of Manufacture: 1951 - 196
- Number Built: 44,451
- Price at Introduction:
- 300 4 Door Sedan: DM 19,900
- 300 4 Door Convertible: DM 23,700
- 300b 4 Door Sedan: DM 22,000
- 300b 4 Door Convertible: DM 24,700
- 300c 4 Door Sedan Man: DM 22,000
- 300c 4 Door Sedan Auto: DM 23,500
- 300c 4 Door Convertible Man: DM 24,700
- 300c 4 Door Convertible Auto: DM 26,200
- 300c 4 Door LWB Limousine: Additional DM 3,000
- 300d 4 Door Sedan/Hardtop Man: DM 27,000
- 300d 4 Door Sedan/Hardtop Auto: DM 28,500
- Date of Introduction:
- Chassis/Body:
- X Shaped Oval Tube Chassis
- Exterior Dimensions 300:
- Total Length: 194.9 inches (4950mm)
- Total Width: 72.4 inches (1838mm)
- Height at Kerb Weight: 63.0 inches
(1600mm)
- Wheelbase: 120.0 inches (3050mm)
- Front Track: 58.2 inches (1480mm)
- Rear Track: 60.0 inches (1525mm)
- Exterior Dimensions 300b:
- Total Length: 199.4 inches (5065mm)
- Total Width: 72.4 inches (1838mm)
- Height at Kerb Weight: 64.6 inches
(1640mm)
- Wheelbase: 120.0 inches (3050mm)
- Front Track: 58.2 inches (1480mm)
- Rear Track: 60.0 inches (1525mm)
- Exterior Dimensions 300c:
- Total Length: 199.4 inches (5065mm)
- Total Width: 72.4 inches (1838mm)
- Height at Kerb Weight: 63.0 inches
(1600mm)
- Wheelbase: 120.0 inches (3050mm)
- Front Track: 58.2 inches (1480mm)
- Rear Track: 60.0 inches (1525mm)
- Exterior Dimensions 300d:
- Total Length: 204.3 inches (5190mm)
- Total Width: 73.2 inches (1860mm)
- Height at Kerb Weight: 63.8 inches
(1620mm)
- Wheelbase: 124.0 inches (3150mm)
- Front Track: 58.2 inches (1480mm)
- Rear Track: 60.0 inches (1525mm)
- Kerb Weight:
- 300: 3916lb (1780kg)
- 300b: 4026lb (1830kg)
- 300c Sedan: 4092lb (1860kg)
- 300c Convertible: 4202lb (1910kg)
- 300d Sedan: 4290lb (1950kg)
- 300d Convertible: 4400lb (2000kg)
- Fuel Tank:
- 19.0 gallons (72.0 liters)
- Turning Circle:
- 41-43.00ft (12.6-13.1 metres)
- Instruments:
- Speedometer
- Petrol gauge
- Temp warning lamp
- Oil warning lamp
- Transmission (Manual, 4 Speed) 300:
- 1st: 2.95:1 (later 3.30:1)
- 2nd: 2.13:1
- 3rd: 1.46:1
- 4th: 1.00:1
- Transmission (Manual, 4 Speed) 300b and 300c:
- 1st: 3.44:1
- 2nd: 2.30:1
- 3rd: 1.53:1
- 4th: 1.00:1
- Transmission (Automatic, 3 Speed) 300d:
- 1st: 2.303:1
- 2nd: 1.435:1
- 3rd: 1.000:1
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- Clutch:
- Single cushion disc, dry plate clutch
- Rear Axle Ratio:
- 300: 4.44:1
- 300b/300c/300d: 4.67:1
- Engine Speed at 100 km/h:
- 0-60 mph (0-97 km/h):
- 300: 18.0 seconds (approx)
- 300b/300c/300d Sedan: 17.0 seconds (approx)
- 300c/300d convertible: 18.0 seconds (approx)
- Maximum Speed:
- 300: 160 km/h (99.5 mph)
- 300b: 163 km/h (101.0 mph)
- 300c Sedan: 160 km/h (99.5 mph)
- 300c Convertible: 155 km/h (96.3 mph)
- 300d Sedan: 170 km/h (105.6 mph)
- 300d Convertible: 165 km/h (102.5 mph)
- Engine 6 Cylinder M 186 300:
- Capacity: 2996cc 182.7ci
- Type: Conventional, watercooled four
stroke, reciprocating piston type with
6 cylinders
- Configuration: Front mounted, longitudinal,
inline
- Head: Pushrod and rocker actuated ohv
with one valve per cylinder
- Fuel System: 2 Dual downdraft Solex 40 PBJC carburetors
- Bore and Stroke: 3.35 x 3.46 inches
(85 x 88mm)
- Power: 115 hp @ 4600 rpm
- Torque: 20.0 mkg @ 2500rpm (114.0 ft/lb)
- Compression Ratio: 6.4:1
- Engine 6 Cylinder M 186 300b and 300c:
- Capacity: 2996cc 182.7ci
- Type: Conventional, watercooled four
stroke, reciprocating piston type with
6 cylinders
- Configuration: Front mounted, longitudinal,
inline
- Head: Pushrod and rocker actuated ohv
with one valve per cylinder
- Fuel System: 2 Dual downdraft Solex 32 PAJAT carburetors
- Bore and Stroke: 3.35 x 3.46 inches
(85 x 88mm)
- Power: 125 hp @ 4500 rpm
- Torque: 22.5 mkg @ 2600rpm (163.0 ft/lb)
- Compression Ratio: 7.4:1 (later 7.5:1)
- Engine 6 Cylinder M 186 300d:
- Capacity: 2996cc 182.7ci
- Type: Conventional, watercooled four
stroke, reciprocating piston type with
6 cylinders
- Configuration: Front mounted, longitudinal,
inline
- Head: Pushrod and rocker actuated ohv
with one valve per cylinder
- Fuel System: Bosch Injection Pump
- Bore and Stroke: 3.35 x 3.46 inches
(85 x 88mm)
- Power: 160 hp @ 5300 rpm
- Torque: 24.2 mkg @ 4200rpm (175.0 ft/lb)
- Compression Ratio: 8.55:1
- Ignition and Electrical:
- 12 volt
- Coil and alternator
- Exhaust:
- Suspension:
- Front: Independent
type with coil springs
- Rear: Swing axle with coil springs
- Steering:
- 300: Worm and ball, ratio 17.9:1 (3.3 turns)
- 300b and 300c: Recirculating ball, ratio 21.4:1 (3.75 turns)
- 300d: As per 300c, however servo assist available as an option from September 1958
- Brakes:
- 300: Drum, 1270 cm sq. 197.0 sq in.
- 300b/300c/300d: Drum, 1470 cm sq. 228.0 sq in.
- Wheels:
- 15" Pressed steel disc wheels
- Tyres:
- 300 and 300b: 7.10 x 15 extra
- 300c and 300d: 7.60 x 15 extra
300 Production Schedule |
Vehicle |
Year |
Cars Manufactured |
300 and 300b (186 II-III) Sedan |
1951 |
47 |
1952 |
2,659 |
1953 |
1,776 |
1954 |
1,185 |
1955 |
547 |
Total: |
6,214 |
300 and 300b (186 II-III) Convertible |
1951 |
2 |
1952 |
262 |
1953 |
181 |
1954 |
87 |
1955 |
59 |
Total: |
591 |
300c (186 IV) Sedan |
1955 |
330 |
1956 |
885 |
1957 |
217 |
Total: |
1,432 |
300c (186 IV) Convertible |
1955 |
3 |
1956 |
48 |
Total: |
51 |
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