There are Alot of different weight figures with this CTS, I think under 4000Lbs was the lightest i herd, and just over 4400Lbs was the heaviest, the one i listed, 4130Lbs was the lightest (That ive actually looked for) And we here use the lightest weights recorded.
I went to the Caddilac USA page And Starting at $64,515-$74,870, I added all the options and checked to see, and i do not see how all those options could add up too 300+Lbs on the V, Safety kit/Wood Trim/Power Sunroof/Tranny, were the heaviest options there, and i dont see those adding 300+Lbs, So ive no idea were 4400+Lbs comes from where tested, Unless there filling EVERYTHING Liquid up to the brim, and counting the driver and possibly safety and video equipment and maybe even luggage.
But, Since 1873Kg is the lightest shown, thats the one we should use.
Still maintain this has a better interior the the F10 M5, And looks Damned good all blacked out.
And Unfortunetley, a CTS-V here will run you £70,000, Which i find abit high, still 4k less then an M5, but still.