1990 Cadillac Allante vs. 1999 GMC Sierra

To start off, 1999 GMC Sierra is newer by 9 year(s). Which means there will be less support and parts availability for 1990 Cadillac Allante. In addition, the cost of maintenance, including insurance, on 1990 Cadillac Allante would be higher. At 5,325 cc (8 cylinders), 1999 GMC Sierra is equipped with a bigger engine. In terms of performance, 1999 GMC Sierra (282 HP @ 5200 RPM) has 114 more horse power than 1990 Cadillac Allante. (168 HP @ 4300 RPM) In normal driving conditions, 1999 GMC Sierra should accelerate faster than 1990 Cadillac Allante. With that said, vehicle weight also plays an important factor in acceleration. 1999 GMC Sierra weights approximately 245 kg more than 1990 Cadillac Allante. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.

Because 1999 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1990 Cadillac Allante. In wet, icy, snow, or gravel driving conditions, 1999 GMC Sierra 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. 1990 Cadillac Allante has automatic transmission and 1999 GMC Sierra has manual transmission. 1999 GMC Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1990 Cadillac Allante will be easier to drive especially in heavy traffic.

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