The first-generation Lexus IS (codename XE10), also sold as the Toyota Altezza in Japan, was designed to compete directly with the BMW 3 Series (E46). It stands out with its rear-wheel drive architecture, its inline-six engines (for international versions), its timeless design with its famous clear taillights (which gave rise to the "Altezza lights" style), and its watchmaking-inspired instrument cluster (chronograph dial). It is a model whose build quality and mechanical reliability have become legendary. Although it was never offered in diesel or hybrid on this generation, it remains a top choice for lovers of beautiful, reliable mechanics. Overall reliability rating: Excellent.
The first-generation Lexus IS (XE10) is a masterpiece of mechanical reliability. Official statistics confirm this: with an exceptionally low ADAC breakdown rate (1.2 breakdowns/1000 veh/year) and a What Car? score of 4.5/5 (only 10% of breakdowns reported over 12 months), it largely outclasses its German rivals of the same era. The 1G-FE and 2JZ-GE engines are true monuments of Japanese engineering, capable of exceeding 400,000 km without a hitch if maintained. The only real mechanical black spot concerns the front suspension ball joints, which must be replaced preventively. If you accept fuel consumption from another era and average rear roominess, it is a highly recommended purchase, on its way to becoming a true collector's item (youngtimer).