The genesis of the Tiara was the result of an agreement during the mid-1990s between Proton's then CEO, Yahaya Ahmad, and PSA Peugeot Citroën, a producer of Citroën and Peugeot vehicles.
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Yahaya had expressed wishes that Proton not use Mitsubishi platforms, and that Proton cooperate with PSA Peugeot Citroën for access to its diesel engines.
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