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Driven: BMW Z4

Loved as it may be by its loyal fanbase, the outgoing Z4 was always something of a mixed bag in terms of design. While the car's classic long-bonnet, cab-back profile and short overhangs should have pleased the eye, the BMW's sheer frontal mass made its proportions seem out of balance. The application of the company's then-new ‘flame surfacing' form language also generated a visual business that seemed out of place on something as conceptually simple as a roadster.

Jaguar XF – the 2010 police version for Plod

This is the first police-spec Jaguar XF – bound to an orderly life of patrolling the motorways around the Midlands area encircling Jaguar's HQ. The local constabulary has bought seven 271bhp 3.0-litre Diesel S models in police trim.What's changed to make the XF a police car?Not much out of the ordinary. It's much easier to spot than a demarked police car, with its roof bar, LED flashers in the grille and refletive decals galore.It's ironic that Jags used to be the getaway vehicle of choice in the 50s, 60s and 70s in films of a certain bent; now Jaguar has gone good and supplying Plod himself.

Aston Martin V12 Zagato

The new Aston Martin V12 Zagato has been unveiled ahead of its official debut at the Concorso d'Eleganza this weekend. This latest concept marks the revival Aston Martin's long-standing collaboration with the famed coachbuilder in the 50th anniversary year of the iconic DB4GT. Based on the V12 Vantage, the Zagato model features the coachbuilder's defining 'double bubble' roof and a new handcrafted aluminum body, which was formed using an English wheel and traditionally crafted body bucks.