To answer the perennial question of “How many coupes left in the UK” I have crunched the DVLAs data and come up with an answer.
Now the DVLA’s data is flawed because the coupe date exists under a number of categories, not just “Z4 3.0SI COUPE” and “Z4 3.0SI COUPE AUTO” which is what generally comes up on a search of www.howmanyleft.co.uk.
Looking at other data, such as engine capacity and year of registration, I can be reasonably certain that all of the “Si” models are contained in the following categories (excuse the formatting, I cannot paste tables properly):
Category Registered Licensed SORN % accounted for
Z4 2.5SI 110 86 12 89%
Z4 2.5SI AUTO 27 21 1 81%
Z4 3.0SI CABRIO 64 44 7 80%
Z4 3.0SI CABRIO AUTO 39 30 4 87%
Z4 3.0SI COUPE 283 227 34 92%
Z4 3.0SI COUPE AUTO 135 112 16 95%
Z4 SI SE 312 236 36 87%
Z4 SI SE AUTO 145 103 15 81%
Z4 SI SPORT 2314 1704 295 86%
Z4 SI SPORT AUTO 631 455 74 84%
TOTAL 4060 3018 494
Now, Tonyz4c’s data (generally held to be the oracle for worldwide Z4 registrations, but only covering 3.0Si and Z4M) has 3,152 3.0Si registered in the UK, of which 2189 were coupes and 963 were roadsters. This suggests that 908 of the above 4060 total are in fact 2.5Si roadsters. Given that there were 963 3.0Si roadsters, that feels about right.
Of the two categories that we know are exclusively Coupes, 389 of 418 survive, or 93.06%, however these are all later (10/2007-2009) cars, so the survival rate is probably slightly higher than if the earlier cars were included.
Of the four categories that we know are exclusively roadsters, 205 of 240 survive, or 85.42%, but the same as the above is also true, these were all later (10/2007-2009) cars.
Of the remaining population which includes all the 01/2006-09/2007 cars, 2918 of 3402 survive, which is 85.77%.
So, if we assume a mean survival rate for Coupes of c.90% and apply a mean SORN rate of 13.62% (excluding the known 2.5Si population), then c.1970 Coupes still survive of which c.260 are SORN.
Now the DVLA’s data is flawed because the coupe date exists under a number of categories, not just “Z4 3.0SI COUPE” and “Z4 3.0SI COUPE AUTO” which is what generally comes up on a search of www.howmanyleft.co.uk.
Looking at other data, such as engine capacity and year of registration, I can be reasonably certain that all of the “Si” models are contained in the following categories (excuse the formatting, I cannot paste tables properly):
Category Registered Licensed SORN % accounted for
Z4 2.5SI 110 86 12 89%
Z4 2.5SI AUTO 27 21 1 81%
Z4 3.0SI CABRIO 64 44 7 80%
Z4 3.0SI CABRIO AUTO 39 30 4 87%
Z4 3.0SI COUPE 283 227 34 92%
Z4 3.0SI COUPE AUTO 135 112 16 95%
Z4 SI SE 312 236 36 87%
Z4 SI SE AUTO 145 103 15 81%
Z4 SI SPORT 2314 1704 295 86%
Z4 SI SPORT AUTO 631 455 74 84%
TOTAL 4060 3018 494
Now, Tonyz4c’s data (generally held to be the oracle for worldwide Z4 registrations, but only covering 3.0Si and Z4M) has 3,152 3.0Si registered in the UK, of which 2189 were coupes and 963 were roadsters. This suggests that 908 of the above 4060 total are in fact 2.5Si roadsters. Given that there were 963 3.0Si roadsters, that feels about right.
Of the two categories that we know are exclusively Coupes, 389 of 418 survive, or 93.06%, however these are all later (10/2007-2009) cars, so the survival rate is probably slightly higher than if the earlier cars were included.
Of the four categories that we know are exclusively roadsters, 205 of 240 survive, or 85.42%, but the same as the above is also true, these were all later (10/2007-2009) cars.
Of the remaining population which includes all the 01/2006-09/2007 cars, 2918 of 3402 survive, which is 85.77%.
So, if we assume a mean survival rate for Coupes of c.90% and apply a mean SORN rate of 13.62% (excluding the known 2.5Si population), then c.1970 Coupes still survive of which c.260 are SORN.
oke:
