I've been absorbed in Alta's on and off for the last couple of months researching a couple of articles, one of which has just been published.
I've been carpet-bombed with friends Alta material in the most enjoyable type of way, but it's still not clear to me how many cars were built. The various articles have hugely varying numbers. I want to state the number of cars built in the next piece and get it right, hence the summary below for all to attack...
I'm happy to wait for The Book in process for the fine detail which flows from each and every car - my attempt at a list is one of first 'owners', my interest is in how many cars he pushed out the factory door...
Alta Production Numbers : M Bisset : July 17, 2023
1.Pre-War
1.1 Sports
#10 1100 reg 1/11/28 PK4053 G Taylor
#11 1100 w/off Feb 1932
#12 1100 del 12/31 GT1617 Lord Curzon
#14 1100 del 13/6/32 GX2281 Ludovic Ford
#15S 1100 del 13/7/32 PJ7929 JE Finch
#16 1500 KJ8421 RA Gardner 4-seater
#17 1100 del 12/3/33 KV4041 EJ Evans 4-seater
#18 1100 del 15/6/33 APG57 CE Taylor 4-seater
#20 1100 del 5/6/34 EPG903 Patricia Oxenden
#21S 1100 del 19/3/34 FS8673 AJ Cormack
#23S 1100 8/2/35 Leigh esquire
#24S 1100 15/2/35 AER884 PN Whitehead ‘new type cowl and no doors’
#25S 1100 5/5/35 DJP929 AC Lace ‘chain drive to cams’
#54S 1500-2000 24/12/35 FF4515 Dr R Williams (1500-2000, that is, built with a 1.5 engine which was later enlarged/replaced by a 2-litre)
#55S 1500-2000 19/2/36 DPG167 WWS Bennett
#63S 1500-2000 EJJ703 Hunt & Pink ??
#64S 1500-2000 Fritz Kilgarow (only LHD car built)
#66S 1500-2000 23/7/38 GPL3 K Gammon
#70N 26/6/39 KMP977 B Townsend
1.2 Offset-single seaters
#52S 20/7/35 AJ Cormack
#53S 11/5/35 EQY8 RR Jackson
#56S 17/4/36 J Wakefield
#57S 2000 21/5/36 JH Bartlett
#58S 2000 F Boyle
#59S 10/9/36 PF Jucker (killed shortly after purchase to Abecassis)
1.3 Single-seater
#61IS 25/4/37 PF Jucker
#62IS complete set of Alta parts to RR Jackson for H Hunter (which I assume was built into a complete car)
#67IS 1/8/39 AH Bendle
#69IS 23/4/39 Lady Mary Grosvenor
The single-seaters were fitted with coil springs in vertical sliders with one 1939 car fitted with torsion bars
1.4 Other orders, not complete cars
#13 April 1932 1100 supercharged engine for RR Jackson’s Horton Special
#19 8/11/33 Type RI engine D Briault
#22 15/8/34 supercharged engine for Benedetti, Italy
#65 4/10/38 supercharged 2-litre engine for a boat, Watson Esq
#68 28/4/39 1.5-litre supercharged engine to HL Brooke for the Brooke Spl
2.Post-War
2.1 F1 cars
Supercharged 1.5-litres, 2 with two-stage supercharging
GP1 1948 G Abecassis
GP2 1949 G Crossley
GP3 1950 J Kelly
GP4 incomplete, became F2/3 below
2.2 F2 cars
F2/1 1951 FAO Gaze (first entry of an Alta in an F2 race appears to be Gaze @ GP di Monza 13/5/51)
F2/2 1951 Gordon Watson
F2/3 1951 Ecurie Cowell-Stokes
F2/4 1952 Oliver Simpson
F2/5 1952 Peter Whitehead
3. Other random corporate notes
.Austin 7, Morris 1000 & Ford Anglia cylinder heads
.Alta did WW2 Air Ministry work
.Sportscars 19 built
13 1100s, 2 1500s - one normally aspirated and one supercharged - and four 2-litres all of which were supercharged.
Three cars were 4-seaters (does not reconcile to my list), none of which were supercharged
MB note – I think this all means as built @ the factory, clearly there were increases in capacity of many cars, very easy to achieve by changing the liners, along the way
.F2 engines built
How many I wonder? clearly a few in whole or part to HWM, Cooer and Connaught et al
4. Summary of Car Production
19 sportscars
6 offset single-seaters
4 pre-war single-seaters
3 GP cars
5 F2 cars
37 cars