3,846 pounds (SI Units)
Depends on the size.
40g
0.5 oz
It can cost as much as about 300 dollars to re-key the average car. This varies depending on the type of ignition and the type of key.
That depends on the size of the key and what it is made of.
3 grams
The amount that a Lexus dealership charges to make an additional key for a Lexus car depends on the year and model of the car.
The amount that Lexus charges to make a new Lexus car key varies by year and model of the car and by dealership.
Key weight: depends on the manufactorer of the car or house key. Did you mean key as in Kilo as in kilogram?A rough guide is 2.2 lbs per kilo.One kilogram is one thousand gramsOne gram = 0.035273962 ouncesOne pound = 16 ouncesOne kilogram = 2.2046226 pounds http://www.onlineconversion.com/auto_convert.pl
About £120 - £150
dead battery possibly. just a guess, you didn't give much detail.
the car key is in the rear light that is cracked