Time for a summary:
Both cars have the same: builder,
engineer,
designer,
factory building,
builder's name,
model's name,
code name
country,
city of construction,
year,
engine,
engine layout,
seating layout,
wheels\disc brakes
position of the engine
source of energy,
number of CV,
traction,
body style elements,
top configuration
mileage radius,
Citroen-patented hydropneumatic system
-Both cars: are one-off,
are the high-output version of a standard model
are limited production based on production cars
are standard production models named after the body manufacturer
are concept cars\prototype used by books\movies\... characters
are coachbuilt specials based on a popular production car from a different continent
are factory-built 2-door pillarless coupes based on the regular 4-door sedan/saloon model
are woodies
are in the same collection\museum\event
are missing of a part
are the product of three countries
have one exceptional technical spec
have one identical dimension
have only one official colour scheme
have a six-wheeled version
have a badge featuring twice the same letter
have a badge featuring the coat of arms of their cities of origin
have similarities in the steering mechanism
have similarities in the change-speed mechanism
have similarities in the suspension system
have equivalents in other countries
have a name referring to different manufacturers
have a name containing an acronym that refers to a different company
have a name containing a letter from the Greek alphabet
have a name containing the initials of the company owner
have a name containing only one vowel repeated six times
have a name that refers to modernity
have a coachbuilt version of the same design
have a fibreglass body
have a derivate sold by another manufacturer
have racing versions built by the same company
have a luggage compartment above the (underfloor) engine
have a type code shared with a thing\object
have an instrument panel that could be reconfigured to each drivers' preferences
were produced under licence from other manufacturers in the same different country
were introduced with bodies made of a lightweight material, and then switched to steel
were the first cars produced by their makers
were sold in a later period under a different brand name
were available in either front-engine or rear-engine configuration
were the basis for racing cars
were in the same list
were designed by designers who started on airships
had later revival projects,
are named after daughters of the cars distributors
are named after the same object\thing,
are named after meteorological events
are named after the same letter of 2 different alphabets
are named after geographic places
are named after political offices
are named after polish heavy metal bands
derived from different cars,
derived from the same car,
derived from a prototype made for another company
won the same race,
won International competitions driven by their constructors
star in a film,
their engineers worked for the same company\model
Founder's relatives were tied to their early automotive empire
first introduced the same feature, one in the world, the other for its builder
existed because of visionaries born in the same year
-One car: its nickname and the hood ornament of the other car
its engine's nickname and the hood ornament of the other car
is named after a vessil and the other is a sea-going car
is named after the pet companion of a character that shares the name with the second car
is a styling mockup that became the other car
its engine is the evolution of the engine of the other car
its designer worked for the design-house of the second car
its features were credited to the designer of the 2nd
inspired the other
-Both manufacturers: are/were part of the same company
are named after their founders, but with a small change in the name
are named after both their founders, one of whom of each company also produced cars under their own name before
are named after members of the cat group of animals
share their name with makes from the same country started the same year
were created as a joint venture
were owned by tire companies
were sued for making knockoff’s
produced the same non-automotive object
made an unorthodox vehicle
had a specific coachwork for a country
had a model with similar power units at the same time
later on made a car in collaboration with another manufacturer
started car production with cars built under license from another company
started car production with versions of the same vehicle
Their last model derives from the same car
-One manufacturer: worked for the other
had a relative working for the other
was a pilot in the other car
built under license the aircraft engines designed by the other
built the engines for the airships made in the company directed by the other
-The name of one car and: the name of the engine
the name of the city founded,
the name of a special version of the other
the name of the actor who played in a movie featuring the other car,
the circuit where it raced,
the driver of the second,
the part introduced first time,
the same name in a different language,
the number of cars produced,
the number of one dimension of the other,
incorporates the brand name of the other
-The same: man owned the design-house of the 1st and was a dealer for the 2nd
man was director of the first and founded the second company
man designed some adverts for both cars
man designed one car and the car which inspired the other
object was designed by the designer of 1st car and inspired the design of the 2nd
