現在プレイ中のセーブファイルでは各車とも新車で2台ずつ所有しています(パーツの仕様やボディカラーは同じ)。
外装パーツやボディカラー等は人によって一番個性が出るところですね。機能系パーツや安全装備は付けられるものは全部付け、一番高性能の物を装備しています。おまけで最高速度も調べてみました。トレーラ牽引時の速度はトレーラの重量によって変わってくるかもしれません。

Freightliner Argosy
	<Exterior> Wind deflector - Chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 86mph Tractor and semi-trailer: 82mph
Freightliner Century
	<Exterior> Cabin trim - Modern Marker lights - Country Wind deflector - Chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 86mph Tractor and semi-trailer: 82mph
Freightliner Coronado
	<Exterior> Bumper trim - Standard, chrome Cabin trim - Classic Marker lights - Country Wind deflector - Chrome Bug shield - Classic, glass Hood ornament - Eagle, chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 85mph Tractor and semi-trailer: 81mph
Freightliner FLD120 Classic XL
	<Exterior> Bumper trim - Classic, chrome Cabin trim - Classic Marker lights - Country Wind deflector - Chrome Bug shield - Classic, glass Hood ornament - Eagle, chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 86mph Tractor and semi-trailer: 81mph
Hercules Atlas (Peterbilt 387)
	<Exterior> Bumper trim - Modern, chrome (molding) Marker lights - Country Wind deflector - Chrome Bug shield - Classic, glass Chassis - Basic chassis <Performance> Engine - CP435 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 90mph Tractor and semi-trailer: 80mph
Hercules Freedom (Peterbilt 379)
	<Exterior> Marker lights - Country Sun visor - Standard, chrome Wind deflector - Chrome Bug shield - Classic, glass Hood ornament - Eagle, chrome Air horn - Rectangle, chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Air flow system - Standard Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 74mph Tractor and semi-trailer: 71mph
Hercules Liberty (Peterbilt 378)
	<Exterior> Bumper trim - Teuton, chrome Cabin trim - Western Marker lights - Country Sun visor - Classic, chrome Wind deflector - Chrome Bug shield - Classic, glass Hood ornament - Eagle, chrome Air horn - Rectangle, chrome Chassis - Basic chassis <Performance> Engine - CP435 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Air flow system - Western, chrome Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 82mph Tractor and semi-trailer: 68mph
Sterling 9500
	<Exterior> Bumper trim - Modern, chrome (molding) Marker lights - Country Wind deflector - Chrome Bug shield - Classic, glass Hood ornament - Eagle, chrome Chassis - Basic chassis <Performance> Engine - CS450 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 74mph Tractor and semi-trailer: 71mph
Titan Alpine (Kenworth T2000)
	<Exterior> Bumper trim - Standard, chrome Cabin trim - Western Marker lights - Country Wind deflector - Chrome Bug shield - Classic, glass Air horn - Rectangle, chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 86mph Tractor and semi-trailer: 82mph
Titan El Dorado (Kenworth T600)
	<Exterior> Cabin trim - Aero Marker lights - Country Wind deflector - Chrome Bug shield - Country, chrome+glass Grille trim - Flame, red Hood ornament - Eagle, chrome Air horn - Rectangle, chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Air flow system - Standard Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 86mph Tractor and semi-trailer: 82mph
Titan Iyno (Kenworth T800)
	<Exterior> Bumper trim - Classic, chrome Cabin trim - Western Marker lights - Country Wind deflector - Chrome Bug shield - Country, chrome+glass Hood ornament - Eagle, chrome Air horn - Rectangle, chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Air flow system - Western, chrome Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 90mph Tractor and semi-trailer: 84mph
Titan Ventura (Kenworth W900)
	<Exterior> Bumper trim - Classic, chrome Cabin trim - Aero Marker lights - Country Sun visor - Classic, chrome Wind deflector - Chrome Bug shield - Country, chrome+glass Hood ornament - Eagle, chrome Air horn - Rectangle, chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Air flow system - Standard Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 86mph Tractor and semi-trailer: 81mph
Western Star 4900 EX
	<Exterior> Bumper trim - Teuton, chrome Cabin trim - Aero Wind deflector - Chrome Bug shield - Country, chrome+glass Hood ornament - Eagle, chrome Air horn - Rectangle, chrome Chassis - Basic chassis <Performance> Engine - CP600 Booster N2O Aggressor Extra tank Suspension - Electromagnetic Engine brake Air flow system - Western, chrome Wheels - Classic <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: 74mph Tractor and semi-trailer: 71mph
Extra: John's Guepard (Cheetah)
	<Exterior> None <Performance> Engine Booster N2O Aggressor Engine brake <Safety> Rear view camera Rain sensor Headlights sensor Cruise control Navigation system <Top speed on flat road (without booster)> Tractor only: Unknown Tractor and semi-trailer: Unknown