BOWLING GREEN, Ky. –Grand
Sport. It’s one of the most storied monikers in Corvette’s
illustrious racing heritage. Today, Chevrolet announced it
is returning to the lineup in the new, 2010 Corvette Grand
Sport model.
The
announcement was made at the 12th
annual
C5/C6 Corvette Birthday Bash, held at the National
Corvette Museum, in Bowling Green, Ky.
The new
Grand Sport combines the Corvette’s LS3-based powertrain
with unique, wide-body styling and a racing-bred suspension
for a distinctive model that delivers a great balance of
road and race track performance. It is offered in both
coupe and convertible body styles, with either a six-speed
manual or six-speed automatic transmission. The LS3 6.2L
engine is rated at 430 horsepower (321 kW)* and 424 lb.-ft.
of torque (575 Nm)* with the standard exhaust system. An
optional two-mode exhaust system elevates the power ratings
to 436 horses (325 kW) and 428 lb.-ft. (580 Nm).
The Grand Sport replaces the Corvette’s previous Z51
package and brings a greater degree of handling
performance, with wider wheels and tires; revised shock,
stabilizer bar and spring specifications; and specific
gearing. The equipment enables cornering capability of 1.0
g, as well as a 0.2-second improvement in 0-60 acceleration
vs. standard LS3-powered models.
Grand
Sport coupe models equipped with the manual
transmission are uniquely outfitted for race track
competition, too, with a dry-sump oiling system,
differential cooler and a rear-mounted battery.
The complete list of content and special features for the
Grand Sport includes:
- Wider
front and rear fenders – including specific front fenders
with integrated Grand Sport badges
- Z06-style
front splitter and tall rear spoiler
- Functional
brake ducts and extra cooling
- Unique
18-inch front and 19-inch rear wheels; painted finish
standard and chrome finish optional
- Large
275/35ZR18 tires in front and 325/30ZR19 tires in the
rear
- Z06-size
brakes, including 14-inch (355 mm) front rotors with
six-piston calipers and 13.4-inch (340 mm) rear rotors
with four-piston calipers
- Specific
manual transmission gear ratios
- Specific
rear axle ratio on automatic-equipped models
With its
special equipment, the Grand Sport offers a unique blend of
performance and amenities. Its suspension package
approaches that of the Z06, but includes a removable roof
on coupes (Z06 has a fixed roof) and, of course, the
availability of a convertible body style. Also, the
paddle-shift six-speed automatic transmission is offered,
while a manual transmission is the only choice with the
Z06.
All of Corvette’s exterior colors are offered on the Grand
Sport, and an available Heritage package adds iconic front
fender hash marks offered in four colors, as well as
two-tone seats with Grand Sport embroidery. The Grand Sport
can be ordered with 1LT, 2LT, 3LT and 4LT trim packages,
too.
Grand
Sport history
Envisioned by legendary Corvette engineer Zora Arkus-Duntov
as a factory-built, lightweight and race-ready production
model that would trump domestic and foreign road-racing
competitors, the original Corvette Grand Sport was a
promising idea that led to the production of five special
prototypes in 1963. The project was later shelved,
following GM’s agreement to stay out of manufacturer-backed
motorsports.
The five prototypes were based on the styling of the 1963
Corvette and were hand-assembled under Duntov’s watchful
eye. But while they looked like production models, the
prototypes were purpose-built race cars that shared little
with their assembly-line cousins. Duntov also oversaw the
Grand Sport engine program that featured a special,
377-cubic-inch small-block V-8 with side-draft carburetors.
Although never officially sanctioned by General Motors, the
five Grand Sport prototypes saw extensive racing experience
throughout the 1960s in the hands of “private” racers who
had strong contacts within Duntov’s engineering circle. All
five original cars are accounted for today and are among
the most valuable in the collector market.
Chevrolet offered a limited-edition Grand Sport production
model in 1996, commemorating the original racing cars and
marking the end of the C4 era in Corvette production. All
of the 1,000 examples were painted Admiral Blue and
featured a white center stripe and red “hash mark” graphics
on the left front fender, a graphic scheme that mimicked
the look of some of the original race cars.