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1991 Callaway Super Speedster LM

Offered from the original owner’s collection, this 1991 Chevrolet Corvette Callaway Super Speedster LM is the second of only two so-called Series II Super Speedsters based on the ZR1 model.

The offspring of collaboration between Corvette performance guru Reeves Callaway and designer Paul Deutschman, the Super Speedster LM is an astonishing step up on the original Speedster, taking full advantage of the ZR1’s Lotus-engineered, all-aluminum DOHC engine and 6-speed manual transmission. One of only three twin turbocharged and intercooled LT5 engines built by Callaway, it delivers a pavement-shredding 766 HP, making the car the most powerful of all the twelve Speedsters produced by the company.

More than “just” an incredibly well-engineered engine swap, the Callaway possesses engineering modifications to the suspension and driveline that fully complement its massive power output. The Le Mans body is the only one used on a Speedster. Designed by Paul Deutschman, the Super Speedster LM is a unique combination of his brilliant Callaway Speedster and the dramatic and aerodynamically efficient Le Mans GT2 pole-winning Callaway LM racer. Luxurious appointments abound in the LM’s interior, which features the consummate craftsmanship of Johann Merkhofer.

Lavishly finished in leather and suede with specially embroidered seats, it is fully equipped with comfort and convenience features that include air conditioning and Delco Bose stereo with CD. Unique among Callaway Speedsters is the car’s removable double-bubble hard top, which shares the car’s gorgeous Candy Wine Red paint and evokes the closed-cockpit C7R racers.

Story by Mecum Auction, Inc.

1991 Callaway Super Speedster LM Gallery

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In Detail

type One Of
built at Old Lyme, Connecticut, USA
body stylist Paul Deutschman
production 1
engine SuperNatural LT5 V8
position Front, Longitudinal
aspiration Twin Turbos
valvetrain OHV 2 Valves per Cyl
fuel feed Mulitpoint Fuel Injection
displacement 5735 cc / 350 in³
bore 101.6 mm / 4.00 in
stroke 88.4 mm / 3.48 in
compression 8.45:1
power 559.3 kw / 750 bhp
specific output 130.78 bhp per litre
bhp/weight 468.75 bhp per tonne
body / frame Composite Boby Panels over Steel Frame
driven wheels RWD w/Limited Slip
wheel type OZ Racing Alloy
front tires P345/35ZR-18 Bridgestone Expedia
rear tires P345/35ZR-18 Bridgestone Expedia
front brakes Drilled Vented Discs Brembo Indy Billet
rear brakes Drilled Vented Discs Brembo Indy Billet
front wheels F 45.7 x 25.4 cm / 18 x 10 in
rear wheels R 45.7 x 34.3 cm / 18 x 13.5 in
steering Rack & Pinion w/Power Assist
f suspension Unequal A-Arms w/Transverse Leaf Springs, Dampers, Anti-Roll Bar
r suspension Upper & Lower Trailing Arms w/Transverse Leaf Srpings, Dampers, Anti-Roll Bar
curb weight 1600 kg / 3527 lbs
wheelbase 2443 mm / 96.2 in
front track 1514 mm / 59.6 in
rear track 1534 mm / 60.4 in
length 4480 mm / 179.8 in
width 1803 mm / 71 in
height 1041 mm / 41 in
transmission ZF 6-Speed Manual
gear ratios 2.68:1, 1.30:1, 1.00:1, 0.75:1, 0.50:1
1991 Callaway Super Speedster LM 1G1YZ23J5M5801985 – did not sell for $275,000 Callaway Series II Super Speedster 1 of 2. Only Speedster with LM body work. 1 of 3 Callaway Twin Turbo LT5 engines. Built using a 1991 ZR1. Candy Wine Red paint with Ivory interior. This twin turbo LT5 delivers over 766 HP making it the most powerful of all speedsters. Unique Callaway double-bubble removable hardtop. 3,636 actual miles.
Auction Source: Kissimmee 2014, #WhereTheCarsAre by Mecum