M41M41 is a gearbox from Volvo. It's a M40 with overdrive.
M41 is a Messier object also catagorised as NGC 2287. It is an open cluster 2,300 LY from Earth, visually close to Sirius in Canis Major.
The M41 was an English motorway in western London, it was downgraded to an A-road and is currently part of the A3220.