The Lamborghini Aventador J is a roofless, windowless one-off barchetta concept car introduced in 2012 Body Style: 2-door, 2-seat open-wheeler roadster (barchetta)Engine: 6.5-liter naturally aspirated 60-degree V12 (48 valves)Horsepower: 690 bhp / 700 PS / 515 kW @ 8,250 rpmTorque: 509 lb-ft / 690 Nm @ 5,500 rpm Drivetrain: Mid-mounted engine, all-wheel drive (AWD)Transmission: 7-speed automated manual (single-clutch)Curb Weight: 3,472 lbs (1,575 kg) — lacks AC and radio for weight savings Top Speed: Over 186 mph (300+ km/h)Origin/Year: Italy, unveiled at the 2012 Geneva Motor .
