Amerigon Ships One Millionth Climate Control Seat(TM) (CCS(TM)) System

Developed for Global Automobile Market, Patented CCS Remains Only Actively Heated and Cooled Seat System

DEARBORN, Mich., April 21 -- Amerigon Incorporated announced today it recently shipped its one millionth Climate Control Seat(TM) (CCS(TM)) system, marking the attainment of a significant milestone for the Company. Amerigon began commercial shipments of its proprietary CCS system in late 1999. The CCS system was the world's first heated and cooled seat system and it remains today the only system on the market to provide seat occupants individually controlled, active heating and cooling. Additionally, the CCS system delivers this year-round driver and passenger comfort in an environmentally friendly manner without using CFCs.

The CCS system, which is integrated into a vehicle seat and operates through a self-contained and solid-state electronic cooling and heating system, is based on Amerigon's proprietary thermoelectric device (TED) technology. Seats containing the CCS system were first introduced to consumers in January 2000 as an option for the 2001 model year Lincoln Navigator Sports Utility Vehicle. In September 2000, the CCS system was selected as an option for the 2001 model year Lexus LS 430 premium luxury sedan. Popular Science magazine honored the system's technology by presenting Amerigon with its annual "Best of What's New" award in 2000.

One year after the initial introduction of CCS Amerigon had shipped 100,000 seat systems to various customers. In 2003, the Company shipped 446,000 CCS systems for the year, including 139,000 in the fourth quarter alone, and by the end of the first quarter of this year Amerigon had shipped its one millionth CCS system.

CCS is now an option or standard feature in 14 popular vehicle lines made by five of the world's leading automobile manufacturers: Ford, General Motors, Toyota, Nissan and Hyundai. Sales of CCS have escalated over the last three years with 2003 revenues increasing by more than 90 percent over the prior year to $29 million and the Company reporting its first operating profit in the fourth quarter of 2003.

"We have made significant inroads into the global automobile industry over the past four years and we believe the best is yet to come," said Chief Executive Officer Daniel R. Coker.

"We have created strong market interest and demand in the U.S. and Asia for CCS and are beginning to see progress in our efforts to establish CCS in the European market. Automobile manufacturers and customers are attracted to CCS because it enhances the comfort and value of a vehicle and we believe there is nothing else like it anywhere on the market. Recent independent market surveys continue to show high consumer interest in heated and cooled seats and we are very optimistic about the future of our technology. Other suppliers offer alternate products such as heated and ventilated seats; however, no one else can claim to actively cool automobile seats."

Coker added that the Company anticipates demand for heated and cooled seats will continue to grow, and he is convinced that Amerigon remains well positioned to meet the needs of this growing market segment. "As previously disclosed in our news release for the 2003 fourth quarter and year-end results, we expect revenues to grow between 25 percent and 35 percent this year from 2003 levels and we anticipate being profitable in 2004," Coker said.

Last November, Amerigon introduced a newly designed and more efficient version of CCS which incorporates the Company's Micro Thermal Module(TM), or MTM(TM), technology. MTM is smaller, lighter, quieter and easier to install than its predecessor and retains all of CCS' environmentally friendly characteristics. In February, Amerigon and Motorola announced they had expanded their long-standing product development alliance and will together design and produce an updated electronic control module for the CCS system.

About the Climate Control Seat(TM) System

Amerigon's proprietary CCS system significantly enhances individual driver and passenger comfort in virtually all climatic conditions by providing cooling and heating to seat occupants, as desired, using a proprietary solid- state heat pump combined with an active, microprocessor-controlled temperature management system. Ambient air is drawn into the system from the cabin of the vehicle and, based on input from individual seat controls and from temperature sensors built into CCS, the system's advanced heat pump heats or cools the air. The heat pump is built around a highly efficient, solid-state thermoelectric device (TED) that rapidly converts electric current into the desired thermal effect (hot or cold).

About Amerigon

Amerigon designs, develops and markets its proprietary Climate Control Seat(TM) (CCS(TM)) products for sale to automotive and truck original equipment manufacturers (OEMs). CCS enhances individual driver and passenger comfort in virtually all climatic conditions by providing cooling and heating to seat occupants, as desired, through an active thermoelectric-based temperature management system. Amerigon's subsidiary BSST is engaged in developing more efficient thermoelectric devices (TED) with twice the efficiency of today's devices and has development contracts with several partners to expand the market for TED-based automotive and non-automotive products. Amerigon maintains sales and technical support centers in Los Angeles, Detroit, Japan, Germany and England.

Certain matters discussed in this release are forward-looking statements that involve risks and uncertainties, and actual results may be different. Important factors that could cause the Company's actual results to differ materially from its expectations in this release are risks that sales may not significantly increase, that necessary additional financing may be unavailable, and that adverse conditions in the automotive industry may adversely affect its results. The liquidity and trading price of its common stock may be negatively affected by these and other factors. Please also refer to the Amerigon's Securities and Exchange Commission filings and reports, including but not limited to its Form 10-Q for the period ending September 30, 2003 and its Form 10-K for the year ended December 31, 2003.

For further information please contact: Jill Bertotti (investors), jill@allencaron.com, or Len Hall (media), len@allencaron.com, both of Allen & Caron Inc, +1-949-474-4300, for Amerigon Incorporated.