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"1957 CORVETTE SS       Brief Specifications       Wheelbase, in.       102       Tread, front     57.0       rear     49.0       Tire size     6.70-15       Dry weight     2737       Engine     V8, ohv       Bore &amp;amp;amp; stroke     3.875x3.0       Displacement, cu in.     283       Displacement, cu cm.     4639       Compression ratio     10.5       Horsepower     283       peaking speed     6200       Axle Ratio, std.     3.70       optional     3.55, 4.11, 4.55       Transmission ratios         4th     direct       3rd     1.31       2nd     1.66       1st     2.20       Performance factors:         lbs/bhp (300 lbs. added)     10.71       cu ft/ton mile     149.5       engine revs/mi.     2770       piston travel, ft/mi.     1385       mph @ 2500 fpm     108.5       Estimated performance in full touring trim:         top speed, mph     138       0-60 mph, secs     6.3       0-100 mph     17.5       ss 1/4 mile     15.2       Announced at the annual meeting of the S.C.C.A. in Detroit, the Super-Sport version of the 1957 Corvette is the car which advocates of Detroit &amp;quot;know-how&amp;quot; have been waiting for. It also shows that Detroit &amp;quot;can do&amp;quot; if they so desire.   The SS model is essentially a competition version of the 1957 Corvette in which various options have been consolidated. The basic list includes the 283 hp fuel injection engine, a single-plate clutch, the long awaited 4-speed transmission, a limited-slip differential, metallic brake linings, finned brake drums, special (heavy-duty) springs, shock absorbers and stabilizer, and air ducts for the brakes.   The car shown has a special cowl with double-bubble windscreens and no top or windows, but it was built for &amp;quot;show&amp;quot; and apparently will not be available to the public.   The new gearbox is surprisingly compact with all four forward speeds synchronized. First and 3rd gears have ratios identical to the 3-speed box&amp;#039;s 1st and 2nd. The main housing is cast iron and reverse gear is situated in the rear bearing retainer cover.   The 283 hp engine package includes the mysterious &amp;quot;Duntov&amp;quot; camshaft. This cam is not particularly unusual; valve lift is .3938&amp;quot; (int.) and .3997&amp;quot; (exh.), but duration is quite long at 287\u0161 for both intake and exhaust. It has proper ramps for adjustable tappets and comes with special 238 lb. dual springs.   The 1957 cars will incorporate some minor changes in the front suspension and steering and the rear suspension has been re-arranged for better rear end adhesion. proclaims the as &amp;quot;America&amp;#039;s only true sports car,&amp;quot; and their racing record for 1956 bears this out.   1957 JAGUAR SS       Brief Specifications       Wheelbase, in.       90.6       Tread, front     50.0       rear     48.0       Tire size     6.50-16       Dry weight     2040       Engine     6-dohc       Bore &amp;amp;amp; stroke     3.27x4.17       Displacement, cu in.     210       Displacement, cu cm.     3442       Compression ratio     9.0       Horsepower     262       peaking speed     6000       Axle Ratio, std.     3.54       optional     292, 3.31, 3.77       Transmission ratios         4th     direct       3rd     1.28       2nd     1.64       1st     2.14       Performance factors:         lbs/bhp (300 lbs. added)     8.94       cu ft/ton mile     128.0       engine revs/mi.     2460       piston travel, ft/mi.     1720       mph @ 2500 fpm     87.9       Estimated performance in full touring trim:         top speed, mph     146       0-60 mph, secs     5.5       0-100 mph     13.5       ss 1/4 mile     14.1       Although sports cars still do, and probably always will, constitute only a small market for the volume-mad producers of automobiles, a firm such as Jaguar builds nearly half of its machines in sports car form.   Accordingly, when announces a new model it is news, and the new XK-SS is going to be something of a sensation. Any enthusiast will instantly recognize that the &amp;quot;SS&amp;quot; is basically a D-type, and the first question will concern price. The port-of-entry-duty-paid price is $5600, a remarkable figure for a machine of this caliber which will be built only in limited quanitities.   The new car fully meets the rules and regulations of the Sports Car Club of American as to the definition of a &amp;quot;production-sports&amp;quot; model, and is in fact an excellent example of a genuine dual-purpose machine -- in marked contrast to a trend (in some areas) towards effeminate, super-luxurious two-seaters.   Nevertheless, the interior comfort features of the SS are truly typical of past and present , and the top and side curtains are carefully executed to complement the &amp;quot;daily-driving&amp;quot; side of its dual nature.   As for the competition side of the picture, a power to weight ratio of under 9 lbs/hp (with driver) takes care of that and one can only hope that other manufacturers will now be encouraged if not forced into offering something competitive.   The specification panel which appears here must be regarded as provisional, since full details are not yet available. However, we understand that carburetion by 3-dual Webers and multiple-spot brakes by Dunlop are included. "^^<http://www.w3.org/2001/XMLSchema#string>
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