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