Model & Series Data

Aurelia Saloon Range
Model/Data B10 B21 B22 B15 B12 Totals
Production Years 1950-1953 1951-1953 1952-53 1952-53 1954-57?
RHD Chassis No. e.g. B10 Finished dates 1001-5938 May 50 – June 53 1001-4250 Mar 51 – Mar 53 1001-1877 Aug 52 – July 53 1001-1067 Aug 52 – Dec 53 1001-2380 Apr 54 – Jan 56
RHD No. Built 4938 3250 877 67 1380 10,512
LHD Chassis No. e.g. B10S Finished dates 1001-1513 June 51 – June 53 1001-1530 Sep 51 – May 53 1001-1197 Sep 52 – July 53 1001-1014 Oct 52 – Dec 53 1001-2020 Mar 54 – 55?
LHD No. Built 513 530 197 14 1020 2,274
Capacity cc 1754 1991 1991 1991 2266
Total Built 5451 3780 1074 81 2400 12,786
Aurelia B20 Grand Turismo
Model/Data B20 S1 B20 S2 B20 S3 B20 S4 B20 S5 B20 S6 Totals
Production Years 1951-52 1952-53 1953 1954-55 1956-57 1957-58
RHD Chassis No. B20 Finished dates 1001-1500 Apr 51 – Feb 52 1501-2231 Feb 52 – Mar 53 2232-2951 Apr 53 – Dec 53 2952-3696 Mar 54 – Oct 55 3697-3816 May 56 – Jan 57 3817-4011 Apr 57 – Aug 58
RHD No. Built 500 730* 720 745 120 195 3011 [3010]
LHD Chassis No. B20S Finished dates 1001-1255 Apr 54 – Dec 55 1256-1435 Apr 56 – Jan 57 1436-1860 Mar 57 – Oct 58?
LHD No. Built 255 180 425 860
Capacity cc 1991 1991 2451 2451 2451 2451
Total Built 500 730 720 1000 300 620 3871

B20-S1, B20-S2 etc., are abbreviations for B20 GT Series 1, Series 2 up to Series 6

Aurelia B24 Spider & Convertible
Model/Data B24 S4 Spider B24S S5 Convertible B24S S6 Convertible Totals
Production Years 1954-1955 1956-57 1957-58
RHD Chassis No. B24 Finished dates 1001-1059 May 55 – Aug 55
RHD No. Built 59 59
LHD Chassis No. B24S Finished dates 1001-1181 Dec 54 – Nov 55 1182-1331 Jul 56 – Jan 57? 1332-1702 Mar 57? – Jul 58?
LHD No. Built 181 150 371 702
Capacity cc 2451 2451 2451
Total Built 240 150 371 761

See also 5. Steering for a Table showing the annual production of left- & right-hand drive for each model of Aurelia.

The 102 B20 3rd Series Maggiora boyshells were 2698, 2699, 2700, 2701, 2704, 2705, 2706, 2711, 2713, 2715, 2716, 2717, 2720, 2721, 2723, 2724, 2729, 2732, 2735, 2736, 2737, 2739, 2740, 2743, 2744, 2746, 2749, 2759, 2768, 2770, 2772, 2773, 2775, 2776, 2777, 2779, 2781, 2782, 2785, 2788, 2789, 2793, 2794, 2795, 2796, 2797, 2798, 2800, 2801, 2802, 2803, 2804, 2805, 2811, 2812, 2816, 2820, 2825, 2827, 2832, 2837, 2839, 2841, 2843, 2844, 2846, 2850, 2851, 2853, 2857, 2859, 2861, 2862, 2863, 2864, 2865, 2866, 2868, 2871, 2872, 2873. 2874, 2877, 2880, 2881, 2885, 2887, 2893, 2896, 2899, 2903, 2907, 2908, 2912, 2915, 2917, 2920, 2922, 2923, 2930, 2933 & 2935.

Aurelia B50, 51, 52, 53, 55, 55S, 56, 56S
Model/Data B50 B51 B52 B53 B55 B55S B56 B56S Total
Production Years 1950-1951 1950-1951 1952-1953 1952-1953
RHD Finished dates 1001-1485 50 – Jun 51 1001-1098 Feb 52 – Feb 53 1001-1086 Feb 52 – Nov 52 1001-1006 Jan 55 – Feb 55 1002, 1003, 1005 Modified from B55-1002, 1003, 1005 Jun 55 – Mar 56
RHD No. Built 485 98 86 6 built 3 remained 3 675
LHD Finished dates 1001-1099 ? – Mar 52 1001-1008 Feb 55 – May 56 1005-1006 Modified from B55S-1005, 1006 Apr 56 – Jun 56
LHD No. Built 99 8 built 6 remained 2 107
Capacity cc 1754 1754 1991 1991 2266 2266 2266 2266
Total Built 485 99 98 86 3 6 3 2 782
B50 & B51 : 584 B52 & B53 : 184 B55 & B55S : 9 B56 & B56S : 5 782

Feb. 2023: Data revised & corrected as per monthly production figures, Giusti & Weernink

Numbering & Production of Chassis & Engines

All left-hand drive cars had a chassis number with a capital “S” in the model description. For example – B20S, B22S etc.

Because the majority of Aurelia Spiders & Convertibles were left-hand drive B24S cars, it is quite often the case now that advertisements & reports of these cars call them B24S & describe the chassis number thus, when they are actually right-hand drive – so I suggest caution. This happens vice versa also.


Car construction was generally started & finished on different dates & the date on which the car was given its chassis number was not in sequence with the chassis number. This means that the date a car was finished can be later than a car with a lower chassis number. 

Also the engine number & chassis numbers are not “matched” as one sees in advertisements & they are only roughly in numerical sequence, diverging as production progresses, many engines being produced as spares & for warranty purposes. The only “match” between numbers on the car as originally made, that can be established, is by obtaining the original production data. This is available from Ufficio Documentazione, Archivio Storico Fiat in Torino or through the Registro Aurelia Italiano. An example of this data is reproduced below.

Lancia Aurelia Build Data

A sheet of paper with a lot of numbers on it

Above is a page from the Lancia Aurelia Production Log-book for Series 3 cars from 2761 to 2782

A page that says ' dati di produzione originali dell ' aurelia ' on it
A page that says ' dati di produzione originali dell ' aurelia ' on it

Above is the data produced by Ufficio Documentazione, Archivio Storico Fiat for the owner in 1998 and a more recent Certificato de Origine from 2023.