Description:
For those looking for a little more power and a some more top end speed, this might be a simple soloution. This is strictly fictional, no real world numbers or technology is used. It's compilation and mixture of other mods. It's unknown if this mod is caompatible with 1:32  If you have Alky's Overdrive Transmissions mod, this will replace it.
All the SCS default and the GTM trucks are represented as well as Viper's Peterbilt and the new R Series Mack by Harven.
This mod can be used in both ATS and ETS2 as there are a variety of Euro trucks covered in this mod. To see if your favorite truck is represented, I've provided a list.

argosy
daf.xf
daf.xf_euro6
freightliner.flb
iveco.hiway
iveco.stralis
ken108
ken200
kenworth.t610_gtm
kenworth.t680
kenworth.t800_gtm
kenworth.w900
kenworth.w900b_gtm
kenworth.w900bb
r series mack
man.tgx
mercedes.actros
mercedes.actros2014
peterbilt.389
peterbilt.389v2
peterbilt.567_gtm
peterbilt.579
renault.magnum
renault.premium
scania.r_2016
scania.rs
scania.s_2016
scania.streamline
scot.a2hd
volvo.f12
volvo.fh16
volvo.fh16_2012
volvo.fh16_2013
volvo.fh16_classic
volvo.vnl780
volvo_vnl

Credits:
SCS, Alky