I've found the answer and it doesn't come in a bottle.Had a few of these now but I haven't bothered to drive any of the others until I had to get to the post office quickly to tax a car and this had some juice in it.
That was about four months ago now and have used it day in day out since- what an incredible little car the Renault Sport 182 is- i feel like I'm 19 again. Balistically quick for what they are, we had to collect a 330 M Sport from the MOT today big old brother was behind the wheel of that. There is always a bit of "spirited driving" when we are in separate cars. Got back to the garage and I was convinced he hadn't been trying but he confessed to red lining the 330 whilst I still f**ked off into the distance.
Get one chaps as a daily, you won't be disappointed they eat 330's for brekky and can be bought for about 50p!