As Toyota Motor Corp. prepares to mark the 25th anniversary of the Lexus next month, the automaker is aiming to strengthen the luxury brand by keeping production mostly in Japan and expanding its modest lineup.

While the Japanese brand keeps an eye on its German rivals, it's devising a long-term strategy to solidify its place in the international market.

Lexus held a party in Tokyo on Tuesday to commemorate the launch of the all-new NX sport utility vehicle. About 300 people from the fashion industry and other businesses took part.