BMW 7 E32

Introduction
In 1986, BMW introduced the second generation of the 7 series, known internally as the E32. Aimed at the high end of the luxury market, the car offered some of the latest innovations in automotive technology, and a new, top-of-the-line V12 engine. Some luxury options featured on the E32 included integrated telephone and fax machines, a wine cooler, double glazing, heated door locks and windshield washer nozzles, electronic stability control, and a system that automatically increased spring pressure on the windshield wipers, to keep them firmly pressed on the glass at Autobahn speeds. Incidentally, the E32 was the first car adhering to BMW's self-imposed speed limit of 250 km/h.
The car was also available in a stretched version (indicated by an 'L' after the model number), in which case an extra 10 centimeters of leg room was available to the rear passengers.
The BMW 750iL Highline was the top-of-the-line model of the E32, with lots of added luxury for the rear passengers like full leather, dual radio controls, dual climate control, electrically heated and adjustable rear seats, and walnut veneer folding tables. It also added a second battery in the trunk and a second alternator to provide power for all these luxuries. The 'Highline' option package cost more than Eu10.000, and was only available on the 750iL, bringing the total price to well over twice that of a 'basic' 730i ('basic' to be taken in context obviously).

Engines
The E32 was offered with several different engines, all petrol. At the car's introduction, the 730 and 735 used the straight-6 M30 engine, while the 750 featured the all-new M70 V12 engine which produced 300 bhp. In 1992, a new 32-valve V8 engine was introduced, the M60. The 730i got this engine in a 3-liter version, while the new 740i got the 4-liter version. Both versions were coupled to a new, 5 speed automatic transmission made by ZF. In some countries, there were serious problems with the M60 engine because of sulfur corrosion problems in its nikasil cylinder block. The cylinder lining would quickly wear, causing the engine to lose compression, which caused rough idling and eventually the engine would fail to start. Many engines were replaced under warranty; the problem was corrected by using a different material.
BMW continued to offer the 730 with the straight-6 M30 engine (as well as the V8) in Europe until 1994, when the E38 was introduced.
Externally, the BMW 'kidney' grille indicated which engine was present under the hood: all 6-cylinder models had a narrow grille, and all 8- and 12-cylinder models had the wider version. This feature was not seen on later models (the E38 used a wide grille for all models)