See pag.1 for rules and reply n.43 on pag.2 for the connections already used.
-Both cars have the same: builder,
engineer,
designer,
factory building,
builder's name,
model's 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,
mileage radius,
Citroen-patented hydropneumatic system
-Both cars: are one-off,
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 woodies
have one exceptional technical spec,
have a badge featuring twice the same letter
have similarities in the steering mechanism
have similarities in the change-speed mechanism
have equivalents in other countries
have a name referring to different manufacturers
have a coachbuilt version of the same design
have a fibreglass body
have badges which feature the coat of arms of their cities of origin
have a letter from the Greek alphabet in their name
have a derivate sold by another manufacturer
have a luggage compartment above the (underfloor) engine
were the first cars produced by their makers
were the basis for racing cars
were in the same list
were designed by designers who started on airships
are the high-output version of a standard model
star in a film,
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
derived from different cars,
derived from the same car,
won the same race,
are in the same collection\museum\event
their engineers worked for the same company\model
are missing of a part
Founder's relatives were tied to their early automotive empire
are the product of three countries
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 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: produced the same non-automotive object
made an unorthodox vehicle
had a specific coachwork for a country
later on made a car in collaboration with another manufacturer
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 driver of the second,
the name of a special version of the other
the circuit where it raced,
the part introduced first time,
the name of the actor who played in a movie featuring the other car,
the same name in a different language,
the name of the city founded,
the number of cars produced,
the number of one dimension of the other,
the name of the engine
-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 one car and the car which inspired the other