Scientists decipher cave painting

Here is the text:

Man wife car air conditioner broke. Wife go dealer fix. Mechanic quote. Wife say, Wow! Expensive!

Wife by nother car instead.

Man say how two people drive three car?

Wife say it good deal. Only little bit more than compressor.

Man say so why we need big car broke air conditioner then?

Wife say, for big IKEA stuff.

Wife say, that remind me…

Man say, look, many fat mammoth! I hunt now!