1978 Avanti Avanti vs. 2012 GMC Sierra

To start off, 2012 GMC Sierra is newer by 34 year(s). Which means there will be less support and parts availability for 1978 Avanti Avanti. In addition, the cost of maintenance, including insurance, on 1978 Avanti Avanti would be higher. At 6,568 cc (8 cylinders), 1978 Avanti Avanti is equipped with a bigger engine. In terms of performance, 2012 GMC Sierra (353 HP @ 5400 RPM) has 176 more horse power than 1978 Avanti Avanti. (177 HP @ 3400 RPM) In normal driving conditions, 2012 GMC Sierra should accelerate faster than 1978 Avanti Avanti. With that said, vehicle weight also plays an important factor in acceleration. 2012 GMC Sierra weights approximately 1084 kg more than 1978 Avanti Avanti. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.

Because 2012 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1978 Avanti Avanti. In wet, icy, snow, or gravel driving conditions, 2012 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. Let's talk about torque, 2012 GMC Sierra (506 Nm @ 4400 RPM) has 64 more torque (in Nm) than 1978 Avanti Avanti. (442 Nm @ 2000 RPM). This means 2012 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1978 Avanti Avanti. 2012 GMC Sierra has automatic transmission and 1978 Avanti Avanti has manual transmission. 1978 Avanti Avanti will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 GMC Sierra will be easier to drive especially in heavy traffic.

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