1989 GMC Suburban vs. 1990 Porsche 928

To start off, 1990 Porsche 928 is newer by 1 year(s). Which means there will be less support and parts availability for 1989 GMC Suburban. In addition, the cost of maintenance, including insurance, on 1989 GMC Suburban would be higher. At 5,732 cc (8 cylinders), 1989 GMC Suburban is equipped with a bigger engine. In terms of performance, 1990 Porsche 928 (330 HP @ 6200 RPM) has 122 more horse power than 1989 GMC Suburban. (208 HP @ 4000 RPM) In normal driving conditions, 1990 Porsche 928 should accelerate faster than 1989 GMC Suburban.

Because 1989 GMC Suburban is four wheel drive (4WD), it will have significant more traction and grip than 1990 Porsche 928. In wet, icy, snow, or gravel driving conditions, 1989 GMC Suburban 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 Porsche 928 (430 Nm @ 4100 RPM) has 23 more torque (in Nm) than 1989 GMC Suburban. (407 Nm @ 2800 RPM). This means 1990 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1989 GMC Suburban. 1989 GMC Suburban has automatic transmission and 1990 Porsche 928 has manual transmission. 1990 Porsche 928 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1989 GMC Suburban will be easier to drive especially in heavy traffic.

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