International Truck and Engine Selects InfinityQS Software; Leading Automotive Engine Manufacturer Leverages SPC Solution to Support its Manufacturing Control Process.

CHANTILLY, Va. -- InfinityQS(R) International, the leading provider of statistical process control (SPC) software, today announced that International Truck and Engine Corporation, a Navistar Company, has selected and deployed its SPC software across the company's three main Engine facilities in Indiana, Illinois and Alabama. InfinityQS' SPC software will enable the company to monitor, control and improve the processes of its manufacturing operations in real-time.

International Truck and Engine is the leading producer of mid-range diesel engines in North America, producing engines for commercial International(R) trucks and buses as well as heavy duty pick-up trucks, vans, SUV's and commercial vehicles for other equipment manufacturers. Notably, International Truck and Engine Corporation and its bus manufacturing affiliate, IC Corporation have been building trucks and school buses since 1907 and remains one of the industry's largest manufacturers.

"After an extensive trial and critical evaluation of other SPC solutions, we conducted a head-to-head comparison of InfinityQS and WinSPC. We identified InfinityQS' SPC software as the only solution that was compatible with our Zeiss tools, effectively simplifying our facilities' statistical control processes," said Suttisak Pardungkiattisak, team leader at International Truck and Engine Corporation. "Implementation and integration was seamless and undisruptive to our everyday work and functionality. International Truck and Engine Corporation has a commitment to produce quality diesel engines from start to finish, and InfinityQS' solutions will advance our ability to do so while providing continuous returns on investment."

"International Truck and Engine approached us with very clear specifications required by their plants," said Michael A. Lyle, president and chief executive officer of InfinityQS. "Quality processes are a key component in automotive manufacturing, and International Truck and Engine concluded that our SPC software solution met their high standards. We are delighted that this manufacturer has chosen our product to deliver the data analysis and quality assurance essential for meeting their core manufacturing objectives."

About International Truck and Engine Corp.

International Truck and Engine Corporation is the operating company of Navistar International Corp. (NYSE:NAV). The company produces International(R) brand commercial trucks, mid-range diesel engines and IC brand school buses, Workhorse brand chassis for motor homes and step vans, and is a private label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. The company is also a provider of truck and diesel engine parts and service sold under the International(R) brand. A wholly owned subsidiary offers financing services. Additional information is available at: www.internationaldelivers.com.

About InfinityQS International

InfinityQS is the leading provider of SPC software and services to a broad array of companies, from multi-national giants to smaller, more specialized manufacturers. InfinityQS solutions allow manufacturers to monitor, control and improve the quality of their manufacturing operations across a site, an enterprise or an entire supply chain, continuing to provide significant returns on their initial investment. The company's goal is to improve clients' internal quality standards and ensure their continued success in the global marketplace. For more information on InfinityQS, visit the company's website at www.infinityqs.com.