Compare the BMW 4 Series Convertible 420d 2014 and the BMW M4 Coupe 2015 to find out which luxury car is right for you. Discover the differences in performance, design, and features between these two models.
| Feature | BMW 4 Series Convertible 420d 2014 | BMW M4 Coupe 2015 |
|---|---|---|
| Engine Type | 2.0L 4-cylinder Turbo Diesel | 3.0L 6-cylinder Turbo Petrol |
| Horsepower | 181 hp | 425 hp |
| Torque | 280 lb-ft | 406 lb-ft |
| Transmission | 8-speed Automatic | 7-speed Dual Clutch |
| Drive Type | Rear-Wheel Drive | Rear-Wheel Drive |
| 0-60 mph Acceleration | 7.3 seconds | 4.1 seconds |
| Top Speed | 142 mph | 155 mph (electronically limited) |
| Fuel Efficiency (Combined) | 47 mpg | 25 mpg |
| Seating Capacity | 4 | 4 |
| Convertible Top | Retractable Hardtop | Not Applicable |
| Weight | 3,594 lbs | 3,530 lbs |
| Length | 182.6 inches | 184.5 inches |
| Width | 71.9 inches | 73.6 inches |
| Height | 54.5 inches | 54.4 inches |
| Wheelbase | 110.6 inches | 110.7 inches |
| Front Suspension | Double Pivot Strut | Double Joint Spring Strut |
| Rear Suspension | Five-link | Five-link |
| Brakes (Front/Rear) | Ventilated Discs | Ventilated Discs |
| Steering Type | Electric Power Steering | Electric Power Steering |
| Infotainment System | iDrive with 6.5-inch Display | iDrive with 8.8-inch Display |
| Audio System | 6-speaker Sound System | Harman Kardon Surround Sound System |
Engine Type
The BMW 4 Series Convertible 420d 2014 is equipped with a 2.0L 4-cylinder Turbo Diesel engine, while the BMW M4 Coupe 2015 features a more powerful 3.0L 6-cylinder Turbo Petrol engine.
Horsepower and Torque
The 420d produces 181 horsepower and 280 lb-ft of torque, whereas the M4 generates an impressive 425 horsepower and 406 lb-ft of torque, delivering a more exhilarating driving experience.
Transmission and Drive Type
Both models come with different transmissions; the 420d has an 8-speed automatic, while the M4 features a 7-speed dual-clutch transmission. Both are rear-wheel drive, enhancing the sporty and dynamic nature of the vehicles.
Performance
Acceleration from 0 to 60 mph is significantly quicker in the M4 Coupe, taking just 4.1 seconds, compared to the 420d Convertible’s 7.3 seconds. The M4 also has a higher top speed of 155 mph (electronically limited).
Fuel Efficiency
The 420d offers impressive fuel efficiency, with a combined rating of 47 mpg, making it more economical for longer journeys. In contrast, the M4 has a combined rating of 25 mpg, as it prioritizes performance over fuel economy.
Dimensions and Weight
While the dimensions of both vehicles are relatively similar, the M4 Coupe is slightly longer, wider, and shorter in height compared to the 420d Convertible. The weight of the M4 is slightly lighter at 3,530 lbs, compared to the 420d’s 3,594 lbs.
Suspension, Brakes, and Steering
Both models feature advanced suspension systems, with the 420d having a double pivot strut front suspension and a five-link rear suspension. The M4 is equipped with a double joint spring strut front suspension and a five-link rear suspension. Both models have ventilated disc brakes and electric power steering.
Infotainment and Audio
The 420d comes with an iDrive system featuring a 6.5-inch display and a 6-speaker sound system. The M4 offers an upgraded iDrive with an 8.8-inch display and a premium Harman Kardon Surround Sound System, providing a more immersive audio experience.
Note: The summarized paragraphs have been shortened to meet the word limit.
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