Neverending Chain, now closed!

[Wendax]

Chevron B17 and Citroen HY, as the marque name of the first is part of the marque emblem of the latter.

[Paul Jaray]

I had to read it twice but now I got that 

[Wendax]

I had to read it twice but now I got that 

Sounds like a five-pointer then 

[Otto Puzzell]

That's clever! 

[Carnut]

Citroen H van and Minidor CNG Delivery Van: they're both made of bits of spare roofing material someone found lying around...  well all right then, they both have load areas made of corrugated steel!

[Wendax]

Minidor CNG Delivery Van and Ligier BeSun both lack doors.

[Carnut]

Ligier BeSun minivan and Reliant Scimitar. Both were made by companies that made the slightly odd combination of basic vans and sports cars:

[Wendax]

Reliant Scimitar and BMW 2002 Targa both have bootlids that protrude into the rear wings.

[Carnut]

BMW 2002 Targa and Triumph TR4 Surrey Top.

Both cars, although ostensibly convertibles, have some fixed windows around the rear and a removable roof panel in what later became known as a Targa Top, after Porsche made a 911 Targa.  In fact it had been invented much earlier, Triumph's TR4 having what they called a "Surrey Top".

[Wendax]

Triumph TR 4 Surrey Top and Austin A40 Somerset DHC, as they both carry a name of one of the 39 historic counties of England.

[Allan L]

The Austin A40 Somerset's name includes that of the main road from London to Oxford (A40) and the Audi A10 has the same reference to the main road from London to Cambridge! (for the benefit of non-British members, they are our two ancient university towns)

[Paul Jaray]

Wow!

[Wendax]

Allan, I like yours, too. But this puzzle must go on 

Audi A 10 and BMW 320 d, as they were both the first Diesel engined cars to win a famous 24h race, the Audi in 2006 at Le Mans, the BMW in 1998 at the Nürburgring.

[Otto Puzzell]

BMW 320 d and a Brewster-Ford Town Car

Both cars are recognizable by grills that are in ways that recall human organs: the BMW "kidney" grill, and the Brewster "heart"

[Wendax]

Brewster Town Car and Ford Model 40 Special Speedster, as Edsel Ford owned both of them

[Paul Jaray]

We had this
Cord 812 Phaeton 1937 Tom Mix's and Duesenberg J Rollston Conv. 1937  both car companies were owned by the same man, in the last year of their production

but yurs is new 

[Ehhxekt]

Ford Model 40 Special Speedster and Rover Jet1. Both cars are notable one-offs that underwent a front end restyling in their early days.
The radiator area of the '34 Speedster was modified by its creators, Edsel Ford and E. T. Gregoire, in 1940, the Jet1 was given a new nose job in 1952, just two years after its introduction.

[Wendax]

Rover Jet 1 (in its initial version) and the Renault 12 prototype "Project 117", as they both featured three headlamps.

[Djetset]

Renault's Project 117 R12 prototype and the Rover P6 (2000, 2200, 3500), as they were both three-box sedans/saloons that could have with the spare wheel mounted on the rear trunk/boot lid.

[Wendax]

Rover P6 and Simca 1307 / 1308, as they both were elected as "Car of the Year"

[Djetset]

The Simca 1307/1308 and Alpine GTA, as they both had different model names in the British market (with an 'Alpine' connection), the Simca being called the Chrysler Alpine, and the Alpine being the known as the Renault GTA.

[Wendax]

Alpine GTA and Volkswagen 1500 Typ 3 Cabriolet, as they both have two trunks, one up front and one in the back.

[Paul Jaray]

Rover P6 and Simca 1307 / 1308, as they both were elected as "Car of the Year"

We had this:
Opel G90   Pininfarina Rossa   both cars won the same award

but I'll accept yours too.

403 matches so far! 

[Ehhxekt]

VW 1500 Typ 3 Cabriolet and Ford Comète Cabriolet. Both cars are convertibles based on a two-door sedan model of the company, developed but never produced.
Although officially advertised in the early sixties, the pretty VW 1500 Cabriolet never went into mass production. Neither did the Comète Cabriolet, of which only two prototypes are known to be built.

[Wendax]

Ford Comète Cabriolet and Citroen C3 Picasso were both built in factories, where the Peugeot 207 is being built, the Ford at Poissy, the Citroen at Trnava in Slovakia.