The E38 BMW produced between 1994 and 2001 The E38 is seen as the last of the 'real' 7-Series models. The exterior harks back to both the E23 and E32 in style, retaining the double-headlight but now housed as a single assembly behind a single glass cover. The E38 was larger again than the E32 and even more powerful. The E38 title covers numerous cars with very different characters, from the frugal 728i through to the manic Sport Vanos 740i's and the more refined 750iL. Over the life of the E38 there have been many changes both to the exterior and the engines with three main engine types (I-6, V8 and V12) and a number of variants of those engines.  The E38 can be seen as having three distinct phases, initially the E38 was rolled out in 1994 with the V8 engines from the E32 series (M60). These engines were still very new, only being introduced to the E32 in 1992. The same engine-control system was used (DME 3.3) and married to the E32's 5-speed automatic gearbox. There was a short delay before the V12 was added to the range as the M70 was re-tooled to increase the engine capacity to become the M73. The first big changes occurred in 1996 with a complete upgrade to the V8 engines and the introduction of the I-6 engines. The V8's were increased in capacity to 3.5 Litres and 4.4 Litres for the 735i and the 740i respectively and renamed M62, the 730i model was dropped to be replaced by the 728i. The 728i was a new breed of I-6 engine, much different from the previous M30. The second major changes occurred in late 1998 with a complete upgrade of all the engines (except the M73 which only had minor modifications). The 728i's M52 engine was updated to twin-Vanos and the Nikasil process was dropped. At the same time the V8's were updated to incorporate Vanos variable valve timing to the inlet cams which increased the flatness of the torque curve and increased the peak torque by 20Nm. The peak power was kept the same on the 740i at 286BHP, this was deliberate as to not encroach on the 750i's territory!