There were just 6 of the ultra-rare hypercar McLaren F1 LM ever produced. What’s an LM spec? Le Mans spec. The F1 got a high downforce package that changed the car’s front air dam and added vents above the front wheels and a wing at the back, while the BMW 6.1-litre V12 was freed of its restriction and thus produced 680bhp. This t-shirt is everything you've dreamed of and more. It feels soft and lightweight, with the right amount of stretch. It's comfortable and flattering for both men and women.