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 /ADVANCE/FLINT, Mich., Nov. 30 /PRNewswire/ -- Buick has announced its completely redesigned 1995 Riviera -- a high-styled personal luxury coupe with spirited performance, a spacious interior and world-class structure and strength for safety, comfort and quietness.
 (Riviera prices will be announced Nov. 30 at 6 p.m. EDT for Dec. 1 release.)
 Buick General Manager Edward H. Mertz called the new Riviera a "distinctly American car that combines the style and performance of a coupe with the comfort and roominess of a full-size sedan."
 Styling is aerodynamic and striking. William L. Porter, Riviera's exterior design chief, describes Riviera's shape as muscular, well- balanced and modern -- and free from cues that quickly go out of style.
 "Riviera has elliptical body forms -- with surfaces and curves that are ever-changing," said Porter. "We see this as a car of beautiful body forms and highly energized surfaces."
 Balance also describes Riviera's performance. Its standard engine is the sophisticated new 3800 Series II V-6, which debuts in Riviera. The engine, the latest evolution in V-6 technology, provides excellent acceleration off the line (zero to 60 mph in 9.7 seconds) and strong performance for merging and passing. It also delivers very good projected fuel economy (19 city/29 highway).
 The optional supercharged 3800 V-6 delivers still quicker acceleration (zero to 60 in 8.5 seconds) and projected fuel economy of 17 city/27 highway.
 The 3800 Series II delivers 205 horsepower at 5200 rpm, a 35-horsepower increase over the previous 3800. Torque is also up, from 225 lb-ft at 3200 rpm for the previous 3800 to 230 lb-ft at 4000 rpm for the Series II.
 The optional supercharged 3800 V-6 is rated at 225 hp at 5000 rpm and 275 lb-ft of torque at 3200 rpm. Optional with either engine is interactive traction control, which further improves the excellent traction and stability of Riviera's front-wheel-drive chassis. The system can be switched off for unusual situations, such as rocking the car to get it moving in deep snow or mud.
 Computer controls help the standard 4T60-E electronically controlled four-speed automatic transmission deliver smooth, consistent shifts under all driving conditions.
 Anthony H. Derhake, Buick's chief engineer, said engineers used the opportunity of creating an all-new car to develop the rigid body structure.
 Drivers will immediately notice Riviera's substantial "feel," Derhake said. He noted that the doors close with a satisfying click and the car feels rock-solid on a wide variety of road surfaces.
 He pointed out that Riviera has about a 2-inch wider track than the 1994 Park Avenue -- 62.5 inches front and 62.6 rear compared to 60.4 front and 60.6 rear for Park Avenue -- which provides better handling and a more attractive stance when viewed from front or rear.
 In designing the body stiffness for Riviera, engineers used a natural frequency of 25 Hertz (25Hz) as a benchmark. That benchmark, which Riviera reached, was higher than for the top Lexus or Infiniti models, essentially matching the natural frequency of the 300-series Mercedes. (The higher the natural frequency of a structure, the stiffer it is.)
 A rigid body also makes it easier for engineers to tune the suspension, since a flexible body acts as an undamped "fifth spring." Over time, this flex also causes squeaks and rattles, so a more rigid car stays quiet and tight longer.
 Reaching the natural frequency benchmark of 25Hz was no easy task. Rocker boxes, "A" (front) pillars and other sections were made as large as practical for stiffness. The joints where these sections meet were designed for optimum strength and rigidity.
 Specially designed roof rails, which run front to back along each side of the roof, play an important part in the structure of the Riviera.
 Except for the aluminum hood, all exterior body panels except the roof are double galvanized for improved rust protection.
 With this rigid body structure as a foundation, Riviera engineers designed new suspension and steering systems that provide a quiet, comfortable ride as well as precise, balanced handling.
 The front suspension uses MacPherson struts and coil springs. The large L-shaped lower control arms have been designed to provide both good handling and road isolation. The rear suspension is a new semi- trailing arm design, which uses large cast-aluminum control arms, coil springs, and shocks with air-leveling, making handling more predictable.
 Riviera uses a new magnetic variable-assist steering system, developed by General Motors' Saginaw Division.
 It is a power-assist system that combines hydraulics, electronics and magnetics to offer continuously variable-effort steering. It provides an especially smooth transition from high boost for ease of parking to minimum boost at highway speeds for improved road feel.
 The 1995 Riviera has a complete range of safety features.
 The rigid body structure, which contributes to the solid feel and predictable handling of the car, also forms a strong safety cage around the occupants.
 Both the driver and front passengers are protected by standard air bags as well as three-point safety belts.
 Anti-lock four-wheel disc brakes are standard on all Rivieras. Also standard is the PASS-Key II theft-deterrent system, which permits the car to be started only if the proper key is used.
 Don Genord Jr., product line manager for Riviera, said Buick intends to set a standard for seat comfort: "We really think we have some of the most comfortable seats in the world."
 The Riviera seats, first in Buick's new generation of seating, were designed using sophisticated computers and a systematic program of test drives. The goal was a seat that holds the occupant comfortably in place while distributing body weight so evenly that there are no uncomfortable pressure points. The seats are also designed to fit a wide range of drivers, short and tall, thin and heavy, male and female.
 To better isolate the interior of the car from road harshness and powertrain noise, a number of sound-damping mats and other acoustical controls have been added to the body shell, including an acoustical mat that covers most of the dash panel.
 Riviera's instrument panel has a full complement of analog gauges including tachometer.
 Among a large number of standard comfort and convenience features are six-way power driver and passenger seats with power recliners, driver and front passenger shoulder belt tension adjusters and rear passenger shoulder belt comfort guides, dual automatic ComforTemp climate control and rear-seat ComforTemp, remote keyless entry, express- down driver window, turn signal "on" reminder, front-seat storage with dual cupholders and front supplemental extendible sunshades.
 Optional equipment includes a heated driver's seat, memory driver's seat and mirrors, programmable automatic door locks, remote steering wheel radio and temperature controls, and power lumbar control for driver's seat.
 Also available are leather bucket seats with a center console and floor shift. The standard front seat is a 55/45 cloth split-bench. A leather split-bench is optional. (Riviera seats six with the split- bench and five with the buckets and console.)
 The new Riviera was developed by a team of engineers, designers and other professionals from Buick and from the Cadillac/Luxury Car Engineering and Manufacturing Division in Flint. It will be manufactured at the Orion Assembly Center near Pontiac, Mich., about halfway between Detroit and Flint.
 The first Riviera was introduced for the 1963 model year and quickly earned a reputation as a "modern classic."
 Through more than three decades, highly collectible Rivieras have included, besides those early models, the "boat-tails" of the early 1970s, Riviera Gran Sports from 1965-75, the very popular 1979-85 models and even 3,000 convertibles built from 1982-85.
 -0- 12/1/93
 /NOTE TO EDITORS: A photo of the 1995 Buick Riviera will be transmitted on AP PhotoExpress Dec. 1. See photo PRN1. In addition, the photo is available immediately at no charge to any media with a telephoto receiver or electronic darkroom (PC or Macintosh) that can accept overhead transmissions. To retrieve the photo, please call 214-416-3686./
 /CONTACT: Lawrence R. Gustin of Buick, 313-236-1418/

CO: Buick Motor Division; General Motors Corporation ST: Michigan IN: AUT SU: PDT

SM-ML -- DE028 -- 8945 11/30/93 17:37 EST
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Publication:PR Newswire
Date:Nov 30, 1993

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