NOVELTY - Coating composition (A1) comprises: (A) at least one silane-containing oligomer comprising substituted siloxane compounds (I) and/or their partial hydrolytic condensate, or a copolymer; (B) at least one substituted silane compounds (II) and/or their partial hydrolytic condensate; (C) metal oxide; and (D) condensation catalyst, where the components (A)-(C) are hydrolytically condensed in the presence of component (D) to achieve a T3 to T2 ratio of 0.3 to 2.5.    USE - The coating compositions are useful: for providing a thermoformable hardcoat; in an article which is useful as a window or a solar cell cover, and as an automotive glazing that meets ANSI Z26.1 for automotive glazing applications less than or equal to AS2 requirements (all claimed) i.e. in automobile windows and windshields, auto bodies, sunroofs, motorcycle windshields and bodies, boats, and aircrafts.    ADVANTAGE - The cured coating: has a glass transition temperature below 150 degrees C; exhibits less than 20% delta haze after 500 cycles of taber abrasion testing according to ASTM D1044; exhibits greater than 5% strain and less than 20% delta haze after 500 cycles of taber abrasion testing according to ASTM D1044; and exhibits no cracking or delamination after vibration or cyclic strain loading of the article. The coating compositions are flexible, stable and mar-resistant protective coating compositions.    DETAILED DESCRIPTION - Coating composition (A1) comprises: (A) at least one silane-containing oligomer comprising substituted siloxane compounds of formula (R1(3-b)-Si(Xb)-Y1-(SiO)c(R1)(R2-Si-Xb-R1(3-b))-(SiO)a(R1)2-Si(R1)2-Y1-Si(Xb)-R1(3-b)) (I) and/or their partial hydrolytic condensate, or a copolymer of CR1R1=CR1C(O)OR1 and CR1R1=CR1C(O)OR2SiXdR1(3-1); (B) at least one substituted silane compounds of formula (R3eSiX(4-e)) (II) and/or their partial hydrolytic condensate; (C) metal oxide; and (D) condensation catalyst, where the components (A)-(C) are hydrolytically condensed in the presence of component (D) to achieve a T3 to T2 ratio of 0.3 to 2.5.    R1 = 1-8C alkyl or 6-20C aryl;    R2 = 2-8C alkylene;    X = halo, 1-6C alkoxy, 1-6C acyloxy, 1-6C alkenoxy or OH;    Y1 = O or R2;    a = 0-30;    b = 2-3;    c = 0-6;    d = 1-3;    R3 = 1-8C alkyl, 2-8C alkenyl or 6-20C aryl; and    e = 0-2.    INDEPENDENT CLAIMS are also included for:    (1) coating composition (A2) comprising: (A)-(D) as above per se; and (E) a UV absorber that is capable of co-condensing with at least one of components (A)-(C), where the components (A)-(C) and (E) are hydrolytically condensed in the presence of component (D) to achieve a T3 to T2 ratio of 0.3 to 2.5;    (2) an article having at least one surface coated with (A1) or (A2); and    (3) preparing the coated article having a partially cured or fully cured coating comprising: providing (A1) and a substrate; applying the (A1) to the substrate; and heating (A1) to an elevated temperature for a time sufficient to at least partially or fully cure (A1) to make the coated article having a partially cured or fully cured coating.