Technical Specifications
| Brand | Alpina |
| Model | B3 |
| Generation | B3 (E36) |
| Type (Engine) | 3.0i 24V (250 Hp) SwitchTronic |
| Start of production | 1993 |
| End of production | 1995 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.4 sec |
| Acceleration 0 – 62 mph | 6.4 sec |
| Acceleration 0 – 60 mph | 6.1 sec |
| Maximum speed | 255 km/h (158.45 mph) |
| Weight-to-power ratio | 5.3 kg/Hp, 188 Hp/tonne |
| Weight-to-torque ratio | 4.2 kg/Nm, 240.6 Nm/tonne |
| Power | 250 Hp @ 5700 rpm |
| Power per litre | 83.4 Hp/l |
| Torque | 320 Nm @ 4400 rpm (236.02 lb.-ft. @ 4400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 2997 cm3 (182.89 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 86 mm (3.39 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Kerb Weight | 1330 kg (2932.15 lbs.) |
| Max. weight | 1850 kg (4078.55 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 435 l (15.36 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Length | 4433 mm (174.53 in.) |
| Width | 1698 mm (66.85 in.) |
| Height | 1373 mm (54.06 in.) |
| Wheelbase | 2700 mm (106.3 in.) |
| Front track | 1410 mm (55.51 in.) |
| Rear (Back) track | 1423 mm (56.02 in.) |
| Drag coefficient (Cd) | 0.32 |
| Minimum turning circle | 10.4 m (34.12 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 5 |
| Gearbox type | automatic transmission SwitchTronic |
| Front suspension | Spring Strut |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system), Hydraulic Steering |
| Tires size | 235/40 R17; 265/35 R17 |
| Wheel rims size | 17 |
The Alpina B3 3.0i 24V (E36), produced between 1993 and 1995, represents a unique blend of BMW engineering and Alpina’s renowned performance enhancements. Based on the E36 3-Series sedan, the B3 was not a mere tuning exercise, but a comprehensively engineered vehicle designed to offer a more refined and powerful driving experience than the standard BMW offerings. It occupied a niche position, bridging the gap between the mainstream 3-Series and the higher-performance M3. This variant, equipped with the 3.0-liter inline-six engine and the SwitchTronic automatic transmission, catered to drivers seeking a balance of performance and convenience.
Powertrain & Engine Architecture
At the heart of the B3 3.0i 24V lies the M30 inline-six engine, a 2997cc (3.0-liter) powerplant. While sharing a lineage with BMW’s M30 family, Alpina significantly modified the engine. These modifications included high-compression pistons, a performance camshaft, and a revised cylinder head with larger valves. The engine utilized Bosch Motronic fuel injection, ensuring precise fuel delivery for optimal performance and efficiency. The 24-valve configuration (four valves per cylinder) contributed to the engine’s impressive breathing and power output. The SwitchTronic transmission, a ZF-sourced four-speed automatic, was a defining feature of this variant. It offered both fully automatic operation and a manual shift mode, allowing drivers to exert more control over gear selection. The SwitchTronic system was designed to provide quicker and more responsive shifts compared to a conventional automatic transmission.
Driving Characteristics
The B3 3.0i 24V with the SwitchTronic transmission delivered a refined yet engaging driving experience. While not as overtly sporty as the manual transmission-equipped B3 or the BMW M3, the automatic offered a smooth and effortless power delivery. The 250 horsepower and 236 lb-ft of torque provided ample acceleration, with a 0-60 mph time of around 6.1 seconds. The SwitchTronic transmission, while not as quick as a manual, allowed for reasonably prompt gear changes in manual mode. The gear ratios were tuned to provide a balance between acceleration and cruising comfort. Compared to the standard 3-Series, the B3 offered a noticeably more responsive throttle and a more powerful engine. Against the M3, the B3 prioritized comfort and refinement over outright track performance, making it a more suitable choice for long-distance driving.
Equipment & Trim Levels
The Alpina B3 3.0i 24V was generously equipped, reflecting its positioning as a premium vehicle. Standard features included leather upholstery, power-adjustable front seats, a sunroof, and a high-quality sound system. Alpina-specific touches were evident throughout the interior, including unique wood trim, special badging, and Alpina-branded gauges. Optional extras included a navigation system, upgraded sound systems, and a variety of exterior color options. The interior design emphasized luxury and comfort, with a focus on high-quality materials and craftsmanship. The exterior featured subtle aerodynamic enhancements, including a front spoiler and rear decklid spoiler, designed to improve stability at higher speeds.
Chassis & Braking
The B3 3.0i 24V benefited from Alpina’s expertise in chassis tuning. The suspension was revised with stiffer springs and dampers, along with thicker stabilizer bars, to improve handling and reduce body roll. The braking system featured ventilated discs at the front and solid discs at the rear, providing ample stopping power. Anti-lock braking system (ABS) was standard. The suspension setup aimed to strike a balance between sporty handling and comfortable ride quality. The tires, typically 235/40 R17 at the front and 265/35 R17 at the rear, provided excellent grip and contributed to the car’s overall stability.
Market Reception & Comparison
The Alpina B3 3.0i 24V was generally well-received by automotive critics. Reviewers praised its refined performance, luxurious interior, and unique character. The SwitchTronic transmission was seen as a convenient option for drivers who preferred an automatic gearbox, although some critics noted that it wasn’t as engaging as a manual transmission. Compared to the standard 3-Series, the B3 offered a significant upgrade in terms of performance and luxury. Against the M3, the B3 was often seen as a more comfortable and refined alternative, albeit with slightly less outright performance. Fuel economy was reasonable for a high-performance vehicle of its era, and reliability was generally good, benefiting from BMW’s engineering and Alpina’s meticulous build quality.
Legacy
The Alpina B3 3.0i 24V (E36) remains a sought-after vehicle among enthusiasts. Its combination of performance, luxury, and exclusivity has ensured its enduring appeal. The M30 engine is known for its durability and relatively straightforward maintenance. The SwitchTronic transmission, while complex, is generally reliable if properly maintained. Today, these cars are increasingly appreciated as classic automobiles, representing a unique chapter in the history of both BMW and Alpina. Well-maintained examples command premium prices in the used car market, reflecting their rarity and desirability. The B3 3.0i 24V stands as a testament to Alpina’s ability to create truly special automobiles that offer a distinctive driving experience.
