Sil­ver­ado Cheyenne con­cept: Mini mass, max per­for­mance

The Washington Times Daily - - Auto -

The Chevro­let Sil­ver­ado Cheyenne con­cept ve­hi­cle was un­veiled at the SEMA Show on Mon­day, Nov. 4, em­braces the adage that less is more. The per­for­mance­ori­ented ver­sion of the all-new 2014 Sil­ver­ado reg­u­lar cab com­bines a re­duced curb weight with the per­for­mance of the new 420-horse­power 6.2L V-8 for a strong power-to-weight ra­tio and ex­hil­a­rat­ing per­for­mance.

A low­ered ride height, a rear sta­bi­lizer bar and Brembo carbon ce­ramic brakes com­ple­ment the Cheyenne con­cept’s high-per­for­mance char­ac­ter with en­hanced han­dling and brak­ing ca­pa­bil­ity.

“The Cheyenne con­cept ex­plores the per­for­mance pos­si­bil­i­ties of the all-new Sil­ver­ado, which is al­ready built on a mass-ef­fi­cient lay­out and de­liv­ers a greater bal­ance of per­for­mance and ef­fi­ciency than any other full-size truck in Chevro­let’s his­tory,” said Chris Perry, vice pres­i­dent of Chevro­let mar­ket­ing.

The unique light­weight fea­tures built into the con­cept ve­hi­cle in­clude carbon fiber re­place­ments for the bumpers, tail­gate and in­ner cargo box, shav­ing ap­prox­i­mately 200 pounds from the 4,503 pounds base curb weight of a 5.3L-equipped Sil­ver­ado reg­u­lar cab with a 6’6” box.

Cheyenne de­sign­ers matched the form of the light­weight com­po­nents with their low- mass func­tion. The carbon fiber front bumper in­cludes rac­ing-in­spired ground ef­fects styling com­ple­mented by carbon body-side ground ef­fects while the carbon fiber tail­gate in­cor­po­rates a spoiler. The hood fea­tures a Ca­maro Z/28-in­spired ex­trac­tor vent.

The Ca­maro Z/28 Brembo carbon ce­ramic brakes save more weight be­cause the carbon ce­ramic-ma­trix ro­tors are sig­nif­i­cantly lighter than con­ven­tional steel ro­tors. On the Ca­maro Z/28, for ex­am­ple, they save more than 20 pounds – and it saves un-sprung weight, too, which en­hances driv­ing per­for­mance with more im­me­di­ate and di­rect han­dling. The truck rolls on char­coal-painted 19-inch Ca­maro Z/28 alu­minum wheels and high-per­for­mance tires.

The Cheyenne diet re­moves the trailer hitch, spare tire, in­te­rior center con­sole and some of the sound-dead­en­ing ma­te­rial. The truck also has a light­weight alu­minum drive­shaft and com­pos­ite rear leaf springs.

“Lightweight­ing is a time-hon­ored method of mak­ing the most of a ve­hi­cle’s per­for­mance which Chevro­let has demon­strated time and again with ve­hi­cles like the orig­i­nal 2001 Corvette Z06 and the 2014 Ca­maro Z/28,” said Perry. “And like those ve­hi­cles, the Cheyenne com­ple­ments its lower weight with more horse­power.”

The all-new EcoTec3 6.2L V-8 that pow­ers the con­cept truck is rated at 420 horse­power and 460 lb-ft of torque – the most power in the light-duty truck seg­ment. It’s un­avail­able in reg­u­lar-pro­duc­tion Sil­ver­ado reg­u­lar cab mod­els, giv­ing the Cheyenne a 65-horse­power and 77 lb-ft boost over the pro­duc­tion 5.3L V-8. A Borla per­for­mance ex­haust sys­tem adds an au­thor­i­ta­tive note to the 6.2L’s out­put.

What re­mains is the Sil­ver­ado’s pro­duc­tion six-speed au­to­matic trans­mis­sion, which fea­tures hill de­scent con­trol, as well as fuel-sav­ing elec­tric power steer­ing and Sta­bil­iTrak elec­tronic sta­bil­ity con­trol with hill start as­sist.

In­side, the Cheyenne’s per­for­mance theme is con­veyed with Re­caro sport seats and a flat-bot­tom steer­ing wheel, sim­i­lar to the steer­ing wheel of­fered in the Ca­maro ZL1. Avail­able safety fea­tures, in­clud­ing lane de­par­ture warn­ing, front and rear park as­sist and a rear-vi­sion cam­era, en­hance safety with­out de­tract­ing from the truck’s per­for­mance.

All Sil­ver­ado mod­els fea­ture a fully boxed frame that serves as the foun­da­tion for their strength and ca­pa­bil­ity. The main rails and ma­jor cross mem­bers are formed from high-strength steel, pro­vid­ing a rigid base for max­i­mum haul­ing ca­pa­bil­ity.

“El­e­ments such as high-strength steel in the frame and body struc­ture are found on all pro­duc­tion mod­els, while some also fea­ture alu­minum sus­pen­sion com­po­nents, con­tribut­ing to the Sil­ver­ado’s ev­ery­day per­for­mance. With the Cheyenne con­cept, we’ve taken the low-mass con­cept to a new level – with ex­cit­ing re­sults,” Perry said.

“It is only a con­cept right now, but we are con­tin­u­ally ex­plor­ing new ways to give Sil­ver­ado cus­tomers more.”

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