in my old company, they used to stipulate that it must not be a soft top and have more than 2 seats, but they never really checked to be honest.
I've still not really made my mind up for what i want to do.
I take the allowance at the moment, but that obviously means that I shell out for servicing, tax, tyres, insurance etc.
I was doing alot of mileage last year that ruled me out of the lease cars as there was a cap on the mileage - something silly like 8k miles per annum. So i bought a nearly new vectra CDTI SRI 150 with 6k on the clock for something like £10k less than new price! I took out a personal loan which was way cheaper than any finance deal i could find and service intervals are 30k miles (although I am uncomfortable with that - get mine done 20k)
The Vectra's not the best 'drivers car' as clarkson will tell you, but I think its ideal for what i use it for. Anyway, i now have the liz if i want the 'perfect driving experience'!
Keep the Lotus mate - you know it makes sense!