ie. Not what you'd buy if your numbers come up on the lottery, more the kind of car you'd have if you didn't have to worry about practicalities of family life or had, say, a spare 10 to 15 grand kicking about.
Me? Well since I grew up in Essex close to the main UK Ford plants (Dagenham, Dunton and I even had an uncle who worked at the legendary AVO plant) it's got to be a Ford. Specifically the original 3 door Sierra Cosworth, in "Moonstone blue". Sure, it's long been eclipsed by modern produciton machinery, but 25 years ago it was pretty much God on wheels. The first turbocharged production car to exceed 100bhp per litre from it's engine, 0-60 in 6.2seconds and a top speed of 143mph were seriously impressive in 1985. Hell, that's pretty good now!
As a child I dreamed of big wings (the infamous "whale tail") and even bigger boost, with the racers pumping out over 500bhp. The fact that it's possibly the most stolen car of all time shows just how desireable the Cossie was and is. A rough one can be had for £3000-ish up to £10,000 for a minter. The limited edition RS500 can get as high as £20,000, but a nice "regular" Cosworth for about £8,000, with about 350bhp would do my nicely. I'd have to change the ultra-80's wheels mind...
I've owned both a Dodge Viper and a Lotus Elise and can assure you these types of things are way more affordable in 1:18 scale formats.