CO2 emission exhaust test conversion?

Hello,

I have just recently bought an English mazda mx-3 1.8v6 from 1996 and trying to proof co2 emmission to avoid the 36% vrt. There is no official documentation about it. English delear did MOT exhaust emission test and I have the following results:

Fast Idle Test:

Co: 0.156%

Natural Idle Test:

CO: 0.111%

How can I convert this co2 emission into g/km????

Mazda MX-3 1.6
(1991-1998)

FUEL TYPE: petrol (gasoline)
ENGINE CAPACITY: 1598cc
CYLINDERS: In-line 4
VALVES: 16
POWER: 109bhp
TORQUE: 101 lb-ft
DRIVEN WHEELS: front (FWD)
STANDARD TRANSMISSION: 5-speed manual
OPTIONAL TRANSMISSION: 4-speed automatic
BODY STYLES: coupe
SEATING CAPACITY: 2+2

MAXIMUM SPEED: 112mph
0-60: 10.2 seconds
AVERAGE FUEL ECONOMY: 37mpg

LENGTH: 4220mm [166.1 in]
WIDTH: 1695mm [66.7 in]
HEIGHT: 1310mm [51.6 in]
WHEELBASE: 2455mm [96.7 in]
KERB WEIGHT: 1060kg [2335lbs]

CO2 EMISSIONS: 196 g/km
UK INSURANCE GROUP: 13
EURO NCAP CRASH TEST RATING: not applicable
US NCAP (NHTSA) CRASH TEST RATING: front: 3, side: not tested



Mazda MX-3 1.8 V6
(1991-1998)

FUEL TYPE: petrol (gasoline)
ENGINE CAPACITY: 1845cc
CYLINDERS: V6
VALVES: 24
POWER: 130bhp
TORQUE: 118 lb-ft
DRIVEN WHEELS: front (FWD)
STANDARD TRANSMISSION: 5-speed manual
OPTIONAL TRANSMISSION: 4-speed automatic
BODY STYLES: coupe
SEATING CAPACITY: 2+2

MAXIMUM SPEED: 126mph
0-60: 8.2 seconds
AVERAGE FUEL ECONOMY: 34mpg

LENGTH: 4220mm [166.1 in]
WIDTH: 1695mm [66.7 in]
HEIGHT: 1310mm [51.6 in]
WHEELBASE: 2455mm [96.7 in]
KERB WEIGHT: 1145kg [2522lbs]

CO2 EMISSIONS: 220 g/km
UK INSURANCE GROUP: 15
EURO NCAP CRASH TEST RATING: not applicable
US NCAP (NHTSA) CRASH TEST RATING: front: 3, side: not tested

hope this helps

just googled it

I know that, it is on e.g. autotrader.co.uk but revenue wont accept print out from google and there is nothing official about it. If they charge me 36% tomorrow I will have to contact manufacturer, maybe they can help. Those figures must have come from mazda anyway.