Up for sale is my Ardent Red Lotus Elise S2, fitted with the legendary Honda K20 engine, widely regarded as the ultimate upgrade for these cars. The result is something genuinely special: significantly enhanced performance while retaining everything that makes the open-top Elise so engaging. The K20 is one of the finest high-revving engines ever produced and suits the Elise perfectly, preserving its lightweight, analogue character while adding reliability and serious pace. Background & Ownership The engine was professionally built for my brother's 24-hour Honda Civic endurance race car but following the sale of the car, the engine remained unused which led to the purchase of this Elise specifically for the conversion. We acquired the car in September 2019 at just under 23000 miles. It's since covered only 6300 miles and now sits at 29302 miles. It's always been a third car and simply isn't getting the use it deserves. The car has had 6 previous owners, most understood to be fair-weather use only. This was advised by Adrian Blyth of Specialist Cars (Hindhead), who had previously sold the car multiple times before. While I cannot verify this, the condition strongly supports it, the underside is exceptionally clean with minimal corrosion. Conversion Philosophy The goal of the build was simple: Improve performance significantly Maintain a largely standard exterior appearance Deliver a reliable, usable road car This has been achieved. The car is equally happy cruising or being driven enthusiastically. It has not been used as a track toy aside from a handful of laps at Castle Combe on a private test day shortly after the conversion, it has been exclusively road-driven. Engine & Drivetrain Honda K20 - naturally aspirated Tuned by Dan Webster at HPE (R500 designer) Dyno'd at 240 BHP Rev limiter set to 8,600 RPM Key components include Forged pistons & Arrow steel con rods TDI North fast road camshafts Honda RRC inlet manifold Tegiwa 70mm billet throttle body RamAir intake with carbon fibre feed Acura RDX 410cc injectors Hondata KPro4 ECU upgrade Clockwise Motion baffled sump, fuel rail and fuel regulator Custom Fusionfabs exhaust with swappable decat Transmission Honda 6-speed close-ratio gearbox HPE Ultimate shifter kit MSE driveshafts Handling & Chassis Nitron NTR Fast Road suspension Exige fast road geometry Limited slip differential Carbon Lorraine CL6 brake pads FSH - Lots more detail available, but not enough space to include