The 1981-1983 BMW 315 (E21) was an entry-level compact executive sedan powered by a 1.6 L inline-4 engine, producing around 75 hp and 81 lb·ft of torque. It was the lowest-powered model in the first generation of the BMW 3 Series, known for establishing the "Ultimate Driving Machine" legacy. Enthusiasts often praise the E21 for its solid build and engaging rear-wheel-drive dynamics, though the 315 is known for its relatively modest performance, with a 0-60 mph time of around 14.3 seconds. Today, the 315 is suitable for classic car collectors, weekend cruising, and those looking for an affordable entry into vintage BMW ownership, rather than a performance driving machine.
Maintenance often includes costs for the valve cover gasket, oil filter housing gasket, and cooling system overhauls. Insurance costs for the BMW 3 Series are typically higher than the average vehicle. Reliability concerns may involve the PCV hose, timing kit, and EGR components on some models.
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