1987 Beijing BJ 2021 vs. 1990 Mazda RX-7

To start off, 1990 Mazda RX-7 is newer by 3 year(s). Which means there will be less support and parts availability for 1987 Beijing BJ 2021. In addition, the cost of maintenance, including insurance, on 1987 Beijing BJ 2021 would be higher. At 2,616 cc, 1990 Mazda RX-7 is equipped with a bigger engine. In terms of performance, 1990 Mazda RX-7 (197 HP @ 6500 RPM) has 96 more horse power than 1987 Beijing BJ 2021. (101 HP @ 5000 RPM) In normal driving conditions, 1990 Mazda RX-7 should accelerate faster than 1987 Beijing BJ 2021. With that said, vehicle weight also plays an important factor in acceleration. 1987 Beijing BJ 2021 weights approximately 180 kg more than 1990 Mazda RX-7.

Because 1987 Beijing BJ 2021 is four wheel drive (4WD), it will have significant more traction and grip than 1990 Mazda RX-7. In wet, icy, snow, or gravel driving conditions, 1987 Beijing BJ 2021 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1990 Mazda RX-7 (270 Nm @ 3500 RPM) has 91 more torque (in Nm) than 1987 Beijing BJ 2021. (179 Nm @ 2800 RPM). This means 1990 Mazda RX-7 will have an easier job in driving up hills or pulling heavy equipment than 1987 Beijing BJ 2021.

Compare all specifications:

1987 Beijing BJ 2021 1990 Mazda RX-7
Make Beijing Mazda
Model BJ 2021 RX-7
Year Released 1987 1990
Engine Size 2466 cc 2616 cc
Engine Type in-line dual-disk rotary
Horse Power 101 HP 197 HP
Engine RPM 5000 RPM 6500 RPM
Torque 179 Nm 270 Nm
Torque RPM 2800 RPM 3500 RPM
Fuel Type Gasoline Gasoline
Drive Type 4WD Rear
Transmission Type Manual Manual
Vehicle Weight 1480 kg 1300 kg
Vehicle Length 4290 mm 4320 mm
Vehicle Width 1800 mm 1700 mm
Vehicle Height 1620 mm 1270 mm
Wheelbase Size 2580 mm 2430 mm


 

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