It's the kind of car that Roger Rabbit would drive – larger than life and of epic proportions.

Take that bonnet for example – it's longer than Brighton Pier.
And that nose. If it were – for whatever reason – to emerge from the sea underneath Brighton Pier, to the staccato notes of a dozen double bass players, I fear the entire beach would run for cover.

From the moment you set eyes on the Z4 you can see it is a road-going predator that would have had Spielberg's Jaws cowering behind the coral reef.

Its deliberate and pronounced swooping lines are a statement of intent that can't fail to have people marvelling at its poise.

For example; BMW dropped the car off on the back of a wagon in the middle of Worksop. Without a word of a lie, half the town came to a standstill. You'd think Houdini had just liberated himself from chains bigger than the Titanic's anchor – right in the middle of Worksop town centre.

It almost shouldn't work. It's almost ugly. It's bordering on being over-designed. I mean, there's even a gaping scar cut down the middle of the roof – but it works, it really works.

And all this before the Coupe's 3.0-litre straight six engine has even begun to bark down the twin exhausts.

The six-cylinder engines lovingly crafted at the Bavarian Motor Works factory have long been a source of marvel and admiration.

The pitch and tone are muscular and aggressive but the naturally aspirated power delivery is smooth and consistent.

The six-pot generates 265bhp and a bulky 315Nm of torque. That's enough to propel you to 60mph in 5.7seconds and of course, the top speed is limited to 155mph.

But because the car is relatively light – it has a light alloy engine block and cylinder head – it can offer you 32mpg.

So what does this mean for the drive? Well, I'll start in my garage by getting into the car.

If you're a bit of a bloater – don't buy this car. If you're over 6ft 2ins, don't buy this car. If your wardrobe is full of mini skirts, don't buy this car.
Getting in and out is a challenge that shouldn't be taken lightly. One wrong move and you'll slip a disc.

But once you're in, you feel like Lewis Hamilton. Hunkered down on the road like a praying mantis – waiting to strike.

Because of the acute rake on the windscreen you almost feel like you're peering out through a letterbox – it's brilliant.

Then, you drive the thing. I hate using clichés but this really could be the ultimate driving machine.

Don't get me wrong, roadsters are not easy to drive. They're not grand tourers by any means but boy are they fun.

Because your derriere is perched over the rear axle, and the front end stretches out into the next county, even the slightest of movements on the super-chunky steering wheel is translated into a twitch at the front end.

Turn-in is vicious and if you're brave enough and talented enough to turn off the traction control, the balance of the machine means you can have a whole lot of fun making the tail wag. Incidentally, I was neither brave enough nor talented enough.

Inside you get BMW understated quality. Very few buttons, knobs, stalks and switches to worry about although I wasn't struck on the mirror polished plastic running across the dashboard.

I was however struck on the red leather which gives a real racing feel to the cabin.

The Z4 Coupe embodies all that BMW stands for. Engineering for drivers. Cars for enthusiasts. This is not about a design for life, it's a design for motoring purity.