1977 Austin Allegro vs. 1986 GMC Suburban

To start off, 1986 GMC Suburban is newer by 9 year(s). Which means there will be less support and parts availability for 1977 Austin Allegro. In addition, the cost of maintenance, including insurance, on 1977 Austin Allegro would be higher. At 4,300 cc (6 cylinders), 1986 GMC Suburban is equipped with a bigger engine. In terms of performance, 1986 GMC Suburban (154 HP) has 95 more horse power than 1977 Austin Allegro. (59 HP) In normal driving conditions, 1986 GMC Suburban should accelerate faster than 1977 Austin Allegro. With that said, vehicle weight also plays an important factor in acceleration. 1986 GMC Suburban weights approximately 1390 kg more than 1977 Austin Allegro. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.

Because 1986 GMC Suburban is four wheel drive (4WD), it will have significant more traction and grip than 1977 Austin Allegro. In wet, icy, snow, or gravel driving conditions, 1986 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. 1986 GMC Suburban has automatic transmission and 1977 Austin Allegro has manual transmission. 1977 Austin Allegro will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1986 GMC Suburban will be easier to drive especially in heavy traffic.

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