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  2. Group C - Wikipedia

    en.wikipedia.org/wiki/Group_C

    Group C was a category of sports car racing introduced by the FIA in 1982 and continuing until 1993, with Group A for touring cars and Group B for GTs. It was designed to replace both Group 5 special production cars (closed top touring prototypes like Porsche 935 ) and Group 6 two-seat racing cars (open-top sportscar prototypes like Porsche 936 ).

  3. List of Group C sports cars - Wikipedia

    en.wikipedia.org/wiki/List_of_Group_C_sports_cars

    C, C1 Team LeMans: LM03C 1983 AKA Nissan Fairlady Z Turbo C LM04C 1984 AKA Nissan Skyline Turbo C LM05C 1985 LM06C: 1986 LM07C: 1987 Lola: T610: 1982 C, C1 T616: 1984 C2 T92/10: 1992 C1 Lotec: M1C: 1982 C C302: 1985 C2 C190: 1990 C2 March: 82G: 1982 C 83G: 1983 C1 AKA Nissan Silvia Turbo C 85G: 1985 C1 AKA Nissan Skyline Turbo C 86G: 1986 C1 ...

  4. Group B - Wikipedia

    en.wikipedia.org/wiki/Group_B

    The number of cars required for homologation—200—was just 4% of the other groups' requirements and half of what was previously accepted in Group 4. [9] As homologation periods could be extended by producing only 10% of the initial requirement each subsequent year (20 in Group B's case compared to 500 for A and N), the group made motorsport more accessible for car manufacturers before ...

  5. Formula C (SCCA) - Wikipedia

    en.wikipedia.org/wiki/Formula_C_(SCCA)

    Formula C was an open wheeled SCCA racing class originating in the mid-1960s, derived from the failed Formula Junior class. Formula C cars were very similar to Formula Juniors; Formula B was a similar class with uprated 1600 cc engines. Formula C cars were limited to 1100 cc engines. In the SCCA today, Formula Continental is the direct ...

  6. Group A - Wikipedia

    en.wikipedia.org/wiki/Group_A

    Group A is a set of motorsport regulations administered by the FIA covering production derived touring cars for competition, usually in touring car racing and rallying. In contrast to the short-lived Group B and Group C, Group A vehicles were limited in terms of power, weight, allowed technology and overall cost. Group A was aimed at ensuring ...

  7. Aryl group - Wikipedia

    en.wikipedia.org/wiki/Aryl_group

    The simplest aryl group is phenyl, which is made up of a benzene ring with one of its hydrogen atom replaced by some substituent, and has the molecular formula C 6 H 5 −. Note that a phenyl group is not the same as a benzyl group, the latter consisting of a phenyl group attached to a methyl group and a molecular formula of C 6 H 5 CH 2 − ...

  8. Index of a subgroup - Wikipedia

    en.wikipedia.org/wiki/Index_of_a_subgroup

    First let us show that if b 1 ∈B, then any other element b 2 of B equals ab 1 for some a∈A. Assume that multiplying the coset Hc on the right by elements of B gives elements of the coset Hd. If cb 1 = d and cb 2 = hd, then cb 2 b 1 −1 = hc ∈ Hc, or in other words b 2 =ab 1 for some a∈A, as desired. Now we show that for any bB and a ...

  9. Carbonyl group - Wikipedia

    en.wikipedia.org/wiki/Carbonyl_group

    In organic chemistry, a carbonyl group is a functional group with the formula C=O, composed of a carbon atom double-bonded to an oxygen atom, and it is divalent at the C atom. It is common to several classes of organic compounds (such as aldehydes , ketones and carboxylic acid ), as part of many larger functional groups.